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B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
B737mrg exterior inspection
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B737mrg exterior inspection

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  • 1. The Boeing 737 Exterior Inspection by Captain Pat BOONEPictures from Jan PASHIDIS – Renato ZACHELLO – Krister EDLUND and Chris BRADY – author of www.b737.org.uk Version 2.1 - Jan 20th, 2010
  • 2. The Boeing 737 Exterior Inspection This presentation covers the Boeing 737 (Classic & Next Generation) pre-flight Exterior Inspection according the Boeing FCOM Normal Procedures and Cold Weather Supplementary Procedures. For training only, do not use for operation ! Always use your company publications as sole official source ! Reference : Boeing 737 FCOM December 2009 Legend : (CL) = Classic (NG) = Next Generation Slide 2
  • 3. The Boeing 737 Exterior Inspection This presentation requires Microsoft® PowerPoint 2003® or XP®. Animation will be incorrect and part of the text will be unreadable when using an earlier version of PowerPoint. You can download and install the free MS PowerPoint 2003 Viewer® This free Viewer allows you to view all presentations created by PowerPoint 97 till 2003 without interference to another PowerPoint development program installed on your PC. The Viewer is supported by Windows 2000 SP3 – Windows XP – Windows ME – Windows 98 SE (requires computer restart) – Windows Server 2003 If you have another PowerPoint development program installed on your computer, this program will take precedence to the MS PowerPoint 2003 Viewer. Therefore, you must : 1- download this presentation to your computer 2- from the Start Menu under All Programs, open the Microsoft Office PowerPoint Viewer 2003 and open this presentation file. Slide 3
  • 4. The Boeing 737 Exterior Inspection This 40 slides presentation comes with over 100 pictures and lots of extra information. Whether you are a newbie to the 737 or an experienced Boeing 737 captain, you will certainly discover interesting items… Don’t run through this presentation click-click-click-click-click-click … Instead, prior to viewing the next page, challenge yourself “what am I looking for when I’m doing the exterior inspection myself ?” and find-out that you may be overlooking some important safety items ! Slide 4
  • 5. The Boeing 737 Exterior Inspection This presentation is divided into 4 chapters : 1- General Guidelines 2- The Walk Around 3- Cold Weather Operations 4- Top 10 Blunders… Slide 5
  • 6. General guidelines
  • 7. The Boeing 737 Exterior Inspection  General guidelines General Guidelines - Surfaces and structures must be clear, not damaged and not missing - Fluids should not be leaking - Tires should not be worn, not damaged and no loose treads - Gear struts should not be fully compressed - Engines inlet and tailpipe should be clear, access panels should be secured, the engine exterior should not be damaged and the reverser must be stowed
  • 8. The Boeing 737 Exterior Inspection  General guidelines General Guidelines - Doors and access panels (that are not in use for servicing) should be latched - Probes, vents and static ports must be clear and not damaged - Antennas may not be damaged - Light lenses should be clean and not damaged
  • 9. The Walk-aroundExterior Inspection – Normal Procedures
  • 10. The Boeing 737 Exterior Inspection  The Walk-Around  Left Forward Fuselage Left Forward Fuselage An unaspirated TAT probe (recognizable by its perforation and a large hole at the rear of the strut) indicates a valid OAT on ground only when probe heat is OFF and after sufficient cooling time. Exterior Inspection Probes, sensors, ports, vents and drains …….. Check Doors and Access Panels (not in use) ……… Latched Especially on (CL) make sure the pitot tubes and alpha vane are not Additional Information damaged by the passenger bridge. On (NG) these probes are moved forward. Aspirated and non-aspirated temperature probe…….. Exterior Emergency Exit Lights………………………… “Now, what are you looking for lights The exterior emergency at this location ?” interiorsimultaneously with illuminate the emergency exit lights. An aspirated TAT probe delivers an Exterior emergency lights are accurate temperature measurement installed next to each entry/service (we need 2 items here) on ground. This probe is cooled by door, overwing exits and behind APU bleed air from the left the wing root (picture). pneumatic duct.
  • 11. The Boeing 737 Exterior Inspection  The Walk-Around  Nose Nose Exterior Inspection Radome ………………………………………….. Check Forward E&E Door ………………………...…. Secured The radome is made of composite material Additional Information for operation of the WX radar. Six diverter strips transmit static build-up during normal flight. the nose mayalso Lightning impact on These strips puncture Noise vortex Generators ……………………………….. decrease energydestroy the radome. to the or exceptionally and prevent damage There After each lightning strike or bird strike, the are two E&E access doors. This pictures ILS and WX antenna (located inside the showsradome requires maintenance inspection. the forward E&E door. The forward door radome) in the event of a lightning strike. provides access no the WX radar and PSEU (NG). Even with to apparent damage on the The forward E&Efrom January 2005,E&E door be outside, thedoor and the main may still As composite material “What are you looking for damaged (delaminated) well) are the nose wheel on the inside ! (located aft of Noise Vortex Generators guarded are by a single EQUIP amber (NG)on the flight deck. installed on light to reduce the at this location ?” flight deck ambient noise level by 3 decibel. (2 items)
  • 12. The Boeing 737 Exterior Inspection  The Walk-Around  Nose Wheel Well Nose Wheel Well Exterior Inspection Tires and wheels ….…………………………….. Check Gear strut and Doors …………………………… Check Exterior Light …………………………………….. Check Nose Wheel Steering Assembly ………………. Check Nose Gear Steering Lockout Pin …………. As neededInspection Flood This is not the Gear Pin …………………………………….. indicates the Dome Light. The red line As needed light, but the maximum tow (CL)angleInspection Flood light bar The Nose Wheel Spin Brake (snubbers) ……........ In place is a NOGO (for tow truck drivers) aft wall) (on the Nose wheel Shimmy Dampersfor night flight ! requirement As a general rule, “3 fingers” (that is Additional Information Picture (CL) showing both the Nose Gear Steering “What are you looking for 5 cm or 2 inches) of polished portion Lockout Pin (lower left) and the Gear Pin (top) of the strut should be visible. inside and around Nose Wheel Well Inspection 737-800 are sensitive to Check Some Flood Light........... tail-tipping. You may notice up to the nose wheel well ?” (CL) Nose Wheel Down “2 hands” during off-loading. & Locked marking....... Check Nose Wheel Steering cable assembly ………… Check (NG) Picture Nose Wheel (7 items) Ground Crew Horn
  • 13. The Boeing 737 Exterior Inspection  The Walk-Around  Right Forward Fuselage A diverter strip above each Service/Entry Door guides away rain drops rolling down from the fuselage. Right Forward Fuselage Exterior Inspection Probes, sensors, ports, vents and drains …….. Check Doors and Access Panels (not in use) ……… The Crew Oxygen Bottle ground touched Latched avionics may not be wired These without carrying the Oxygen Pressure Relief Green Disc ……...….Although located in which youservicing Theplaceglove, the E&E, find stored In APU starter hand converter unit E&E entry door ! near the and removal are done via the forward cargoP91 reset and compartment. Additional Information Circuit Breaker only) (CL Forward Toilet Service Door E&E Access Door ……………………………..….Closed the F/O Window Verify that E&E Outflow Valve ………………………..Check AirflowHandle ishere The Light Switch is located flush. Escape Let’s take a look inside the E&E (NG) “What are you looking for The Main Battery at this location ?” Don’t call maintenance for a missing screw or bolt… ThisThe GND is the outlet for the water tiny hole SERVICE Bus drain flexiblepoweredthe flight deck, must be tube on for the (3 items) you EQUIP Cooling Normal on (CL) know, that annoying tube when you close theoperate… Exhaust fan to sliding window…
  • 14. The Boeing 737 Exterior Inspection  The Walk-Around  Right Wing Root, Pack and Lower Fuselage Right Wing Root, Pack and Lower Fuselage The ATC 2 antenna Exterior Inspection The Cargo Compartment Access Panel allows However, the light in the forward and aft cargo you to enter the forward cargo compartment door openings come without a lens cover. Ram Air Deflectorfrom the passenger cabin. This panel isExtended Door …………………..… located A missing or cracked lens cover must be on the right hand side of the passenger cabin Pack and Pneumatic the 10th (737-6/700) – ………... Secured must be near Access Doors 13replaced or the light bulb th (737-8/900) window cutout – row E, below removed,carpet. the floor as shown here. (MEL 33.04) Probes, sensors, ports, vents and drains …….. Check Do not enter the cargo compartment in case of Exterior Lights …………………………………… is Connectionthe cargo a (spurious) smoke/fire warning. The panel Check This connection Ground Pneumatic Before closing-up Pneumatic Manifold Duct). (into right compartment, make sure you installed for the event that luggage is blocking Leading Edge Flapscargo door handle. is located ondon’tright-hand side of the the ……………………………. Check him… the forget about airplane because the ground engineer isTank Vent Inlet (400) Auxiliary Fuel headset-connected on the same side. Additional Information With hydraulic system B unpressurized, the Antenna’s …………………………………………Check LE Krueger flaps may droop. Never grasp a LE Flap with your hands, Cargo Hold Lighting…………………..……Check Lens “What are you looking for because the flaps slam upwards if your fellow pilot on the sure there is no protective cover ! Make flight deck pressurizes system B (NG) Cargo Hold Access Panel………………………… along this side ?” on the static ports. (CL) Auxiliary Fuel Tank Vent………………………….. inletarefree of FOD, Protective covers are installed for the Make also sure These 4 flat antenna’s is several reasons, including maintenance, Landing Light including clothing stowed away by (NG) Retractable (5 items) painting, washing or ground personnel Air 1 and summer day. (into the Ground the Radiothe inleton a hot 2 to protect Altimeter Connection (Pack) Pre-conditioned Antenna VHF against insects duringTransmitter of the Groundconnection is located a stopover.and Receiver Pneumatic Main Distribution Manifold). The COMM 2 Connection Detail (CL) on the left-hand sideon the (NG) COMM 3 the airport’s (Pack) of the left-hand since airplane, side air-conditioning system is integrated into the jetway.
  • 15. The Boeing 737 Exterior Inspection  The Walk-Around  Airconditioning Bay Airconditioning Bay Ram Air Inlets While we are here, let’s take a brief look inside the airconditioning bay. The airconditioning bays are located on each side of the wing roots, forward of the main wheel well. The air-cycle machine The Water Separator The right pack heat exchangers. Air conditioning Outlet Outlets
  • 16. The Boeing 737 Exterior Inspection  The Walk-Around  Number 2 Engine Number 2 Engine Exterior Inspection Access Panels …………………………………notice an engine oil leakage If you Latched during the pre-flight exterior Probes, sensors, ports, vents and drains inspection, call maintenance. …….. Check Fan Blades, Probes and Spinner ……………… Check number of The maximum allowed drops per minute differs by engine Thrust Reverser ………………………………... Stowedsection. type and by engine Exhaust area and Tailcone …………………….. Check Additional Information Alignment of these black indicator Generator Drive Oil system……………………………… strips indicate proper stowage of to call You don’t need the left and right thrust reverser missing bolts. maintenance for Oil leakage…………………………....Checkfocusholes are used to rear “What are you looking for sleeve. If view within limit These on this frame A you into the engine from the with detach the the engine (open). seconds, nosefor hot cone. for 5the reverser deployed surfaces Caution at this location ?” fan starts toafter recent flight rotate… A small puddle T12 Total Inlet Temperature Sensor of oil in the engine exhaustThe oil level indication has a different of a red locking plug is acceptable. will notice the top (5 items) You A large puddle may cause heavy ifengine scale for the left pin here smoke and right the reverser is dispatched and exceptionallyof the wing fire up to because a tail pipe dihedral inoperative (locked). 10 minutes after engine shutdown.
  • 17. The Boeing 737 Exterior Inspection  The Walk-Around  Right Wing and Leading Edge Right Wing and Leading Edge Picture of cold soaked fuel frost on lower wing surface. This picture is taken after descent Exterior Inspection in VMC and landing at an airfield with ambient Don’t call maintenance to temperature above 35 °C / 95 °F !! Access Panels ………………………………… notice there is no ice on the flaps ! fuel Also Latched Defined cold-soaked report holes in the leading edge ! These holes serve Leading Edges Flaps and Slats ………………. Check frost area painting (NG) as wing anti-icing air outlet ! Fuel Measuring Sticks …………….. Flush and secure Wing Surfaces ………………………………….. Check Fuel Tank Vent …………………………………. Check (NG) Do you recall the Cold soaked Fuel Frost Limits ? Additional Information The defueling bay door cannot be Lower Wing : Max. 3 mm or 1/8 inch if the defueling valve is open. closed This valve is Wing anti-icing Wing Anti-Ice Exhaust ………………………………….duct manually operated Only on the wing itself, not(shown here). on the by a handle air supply flight controls, LE/TE Flaps/Slats “What are you looking forwinglets. and not on along the leading edge Upper Wing : Max. 1,5 mm or 1/16 inch Pressure of the right wing ?” > 0°C or Poppet is flush with the wing OAT Check that Flame Arrestor Valve 32°F lower skin. No visible moisture If the valve is popped wing inwards, it (5 items) Only within thereset by maintenance. must be painted area LE slats actuator Similar on both wings (!)
  • 18. The Boeing 737 Exterior Inspection  The Walk-Around  Right Wing Tip and Trailing Edge Right Wing Tip and Trailing Edge Exterior Inspection Picture (NG) : The deflection of the flight spoilers deploy is less than Position and Strobe Lights ……………………... Check the ground spoilers. On NG with the SFP (Short Field Static Discharge Wicks …………………………. Check installed, the Performance) option Aileron and TE Flaps …………………………….angle is further increased. deflection Check Additional Information Any idea about the number of static Flight and Ground Spoilers ……………………………… dischargers installed on each wing ? Main Wing : 4 MEL 33-11 is rather complicated due to “WhatWing (with looking different plastic lenses (single or dual) Main are you blended winglets) : 2 for at this location ?” and winglets installed or not. As a general rule at least one red and Horizontal Stabilizer : 3 one green navigation light must operate for night flight. (3 items) This picture shows a 737-800 with a dual Vertical Stabilizer : 4 plastic lens and blended winglets.
  • 19. The Boeing 737 Exterior Inspection  The Walk-Around  Right Main Gear Right Main Gear Exterior Inspection Tires, Brakes and Wheels ……………………... Check Gear Strut, Actuators and Doors ……………… Check Gear Pin ………………………………..…… As needed Hydraulic Lines …………………………………. Secure tire wear limits Refer to your company manuals and procedures for or call maintenance. Additional Information As a general rule, the strut should be extended by “3 fingers” with passengers Brake Temperature………………………………………. and fuel loaded. brake wear indicator pin If one is missing, the brake can stay in service if operation of the The aircraft can be pin is satisfactory. remaining dispatched with Parking brakes must set in order to check “What are you looking for one, two If aall three main landing or pin is broken, just consider the brake wear indicator pins. gear doorsmissing… Refer to the it – option) (NG missing. both brake pins flush, the With one or at the right main landing gear ?” DDG-CDL forTemppenalties and MFD Brake fuel display on the rejected takeoff. brakes can still handle one maintenance actions. According to the Maintenance Manual AMM 32-41 you may not leave with a flush pin. (4 items) Check your company SOP.
  • 20. The Boeing 737 Exterior Inspection  The Walk-Around  Right Main Wheel Well Right Main Wheel Well When the hydraulic fluid return filter is Exterior Inspection Thisclogged, a like a hydraulic pressure may look red differential fluid leak…indicator will appear on top of the filter APU Fire Control Handle …………………...……….°F).the uses over- (if OAT isMLG uplock mechanism The above 2 °C – 36 Up However, what locking toindicator, call fitting is broken, (NG) If The flightyou notice thesee here is the main landing center you red with an If can be dispatched keepboth (NG – as installed) NGS light ……………...……theTwo be raised after takeoff. Check main wheel gear (dome) lights inoperative landing gear anti-corrosiveup and locked. associated hold the well protection compound maintenance… springs cannot locked position. Anyway, uplock hook in doubt, and if there is any the up Wheel Well ……………………………………….. Check disappeared (CL) an inoperative inspection call maintenance. It has happened that a spring However, on The FCOM does not specify what to check, (if you found it in your garden, is a NOGO for night flight ! in flight please return to company) flood light (two installed – one for each gear) so here are some suggestions : - General condition (no loose cables, no fluid leaks) - Hydraulic System Quantity, Pressure and Filters - Landing Gear Up-Lock system “What are you looking for System both the Fire Handle and the - (CL) Landing Gear Viewing Verify that Bottle Discharge Switch are safety wired. in (NG)Right Main Wheel Well ?” - the Loose Thread Frangible Fitting Verify that the operability green indicator light is illuminated, unless the NGS is (6 items) dispatched inoperative.
  • 21. The Boeing 737 Exterior Inspection  The Walk-Around  Right Main Wheel Well Inside the Main Wheel Well There is a relatively large empty space Additional Information next to and aft of each flap transmission. The F/O Flight Control Spoiler quadrant, It can even hide aspoiler Mixer, mounted The stowaway. Always worth a double check… through cables connected with the F/O should be The handle on the forward side on the forward wall. A short guided tour inside flight deck control wheel wired and pointing upwards. The handle is the Main Wheel Well : for maintenance only. If the handle is rotated, the engine reverser is de-activated… (NG) This is the center tank boost pump. The CAPT Flight Control aileron quadrant,You can find six of these through cables connected with the Captain’s mounted in the forward flight deck control The TE Flaps hydraulic systemand the wheel This is the motor A EMDP wall. (Electric Motor Driven Pump). alternate electric motor are integrated in the same housing on the aft wall of the wheel well. Both motors drive the TE flaps through common orange/black Mounted on the forward part of the system B EMDP B painted shafts. is This Hydraulic system the keel beam, this is the (Electric Motor Driven Pump). PTU. reservoir pneumatic The systemair EDP (Engine B pressure indicator Driven Pump) is located in… The accumulator brake Engine 2 of course. This this indicator pressure Thrust Reverser Control Valve (NG) TE Flap Transmission : hydraulic system reservoir The Standby is theunit transmits power from the orange/black keel beam. for Engine 2. is located on the center torque shaft to the TE flaps for(NG).side. This picture is that So, there are two of these beasts Hydraulic system B installed in the wheel well. Pressure Module
  • 22. The Boeing 737 Exterior Inspection  The Walk-Around  Right Aft Fuselage Right Aft Fuselage Exterior Inspection Doors and Access Panels …………….……… Latched Negative Pressure Relief Door ………..……… Closed Compartment (NG) Aft Cargo Outflow Valve …………………………….……… Check Behind this bulkhead is the toilet Antenna VHF waste tank and the compressor. Probes, sensors, ports, vents and drains …….. Check (CL) COMM 3 APU Air Inlet ……………………………………… Open (NG) COMM 2 (CL) APU Fire Bottle …………………...…..…… Check (CL) Verify that the Squib Discharge disc (yellow) Additional Information looking “What are you for and the Bottle Overpressure disc (red) are in place along the aft fuselage ?” recent delivered (NG) the main service panel is located on On The water Toilet Waste System…………………………………..right side (NG) – left side (CL) of outflow valve comes with “teeth” to the Verify the cargo compartment entry picture is (NG). (6 Comm NG) (7 items reduce aerodynamic noise. the airplane. This VHF items -Antenna…………………………………..toilet service panel is located on CL) for any dents… The the opposite side, with an extra toilet access panel in the front (CL).
  • 23. The Boeing 737 Exterior Inspection  The Walk-Around  Tail Tail APU Cooling Air Inlet Exterior Inspection Vertical Stabilizer and Rudder ……………..….. Check Horizontal Stabilizer and Elevator …………….. Check Elevator Feel Probes …………………………… Check (400-800-900) Tail Skid ..………………………. Check Static Discharge Wicks ……………………….... Check Strobe Light ……………………………………… Check APU Cooling Air Inlet and Exhaust Outlet ….… Check “What are you looking for around the tail ?” (8 items) APU Exhaust Outlet
  • 24. The Boeing 737 Exterior Inspection  The Walk-Around  Tail Tail Location of the VOR/LOC antenna Additional Information The famous Stab Logo Light………………………………………………… trim jackscrew Horizontal Stabilizer-to-Body Sliding Seals…………… Antenna HF and VOR…………………………………… The APU inletsteering cables, The rudder door as seen from the Now, let’s take a look, where you have inside. This here isflight deck door connected to the the electric actuator. pedals. never been before, inside the tail cone : rudder Stabilizer Trim system ……………………………….. APU Inlet Door system ………………………………. Location of the HF antenna APU Fire Extinguisher system ………………………. or lower seal is If the upper The electric Stab trim actuator maintenance. missing, call Other …………………………………………………… When dispatched with the seal removed, apply the performance weight penalties (NG) The logo light is powered from from the DDG / CDL. The Stab trim Main Bus 1. Hence the logo lights control cable drum. The cables are connected to the The aft pressure bulkhead isilluminate with the CAB/UTIL do not flight on 737-100 thruin OFF…! hemispheric switch 800 deck manual trim wheels. and flat on the 900
  • 25. The Boeing 737 Exterior Inspection  The Walk-Around  Left side Left side Differences with Right Side As a general rule both pressure indicators should point upwards. Left Aft Fuselage : When you return to the flight deck, may tend slightly to the left They on cold days and slightly to the right (NG) Waste Compressor Vent …………. Check Very often,days as pressure inside the take a look at these drains. on hot the drains are clogged ! bottles changes with OAT. These drains guide away rain water that has entered the cabin through the Left Main Wheel Well : associated door. A clogged drain may Fire Discharge Bottles ………………...…. Check into the E&E, cause rain water to seep causing damage to electronics. During the exterior inspection Additional Information you may notice the sound of the vacuum compressor Entry / Service Door Floor Drains …………. toilets.cabin crew flushes when the the Check “What additional items will you be checking A malfunctioning air/waste separator may direct waste on the left side of the airplane ?” to the air outlet i.s.o. towards the waste tank… (2 items - NG) (1 item – CL) So here is a good advice : stay away from this hole !
  • 26. Cold Weather OperationsExterior Inspection – Supplementary Procedures
  • 27. The Boeing 737 Exterior Inspection  Cold Weather Operations Pay extra attention to the following items : Surfaces ……………………………………………………………………… Check Control Balance Cavities …………………………………………………… Check Pitot Probes and Static ports ………………………………………………. Check Air Conditioning Inlets and Exits …………………………………………… Check Engine Inlets …………………………………………………………………. Check Fuel Tank Vents ……………………………………………………………... Check Landing Gear Doors ……………………………………………………….... Check APU Air Inlets ………………………………………………………………... Check
  • 28. The Boeing 737 Exterior Inspection  Cold Weather Operations Some Pictures : Clear ice on the leading edge Ice formation on the engine fan after a short taxi time Ice formation in the engine inlet Ice formation on the pitot tubes
  • 29. Top 10 Blunders !In fact, we can as well start withthis classic one :Tools or an oil can accidentallyleft behind in the main wheel wellby maintenance personnel.
  • 30. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 10 How about these 3 tools…? General condition OK ?
  • 31. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 9 A large dent in the fuselage may easily go unnoticed…
  • 32. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 8 Don’t tell me I didn’t warn you !
  • 33. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 7 OK, what’s wrong here ? (NG) The main gear frangible fitting may never be used to attach the fuel truck ground wiring cable !
  • 34. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 6 There is no potential danger that the door opens in flight when the Z-Handle is not correctly stowed. However, you will probably experience additional ambient noise in flight…
  • 35. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 5 OK, what’s wrong here ? This rod is broken, so you will be flying with the right nose wheel well door open…
  • 36. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 4 During the walk-around in heavy rain, you may perhaps not be looking upwards… and these missing access panels from the Horizontal Stabilizer may go unnoticed… Furthermore, always pay extra attention to access panels when the airplane is being returned from maintenance.
  • 37. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 3 Anything wrong here ? (CL) While the gear pin may have drawn your attention, you should also have noticed that the red painting is missing and/or covered with lubricating oil… This is a NOGO !
  • 38. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 2 This engine looks in good shape ? You caught a bird into the N2 compressor during landing. This may go unnoticed, especially during a night time walk-around without carrying a flash-light…
  • 39. The Boeing 737 Exterior Inspection  Top 10 Blunders Number 1 The (smaller) main wheel of a Boeing 737-500 And our Number 1 winner mounted on the Boeing 737-400… today is… ??? So, always take a look to the wheels !
  • 40. The Boeing 737 Exterior Inspection the end - for more information www.B737MRG.net www.B737.org.uk Have a safe flight ! Slide 40

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