Boeing 737-752

Service difficulty reports · 2,590

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '737752'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR EE4Y2014032700052Flap · dentedRIGHT WING TE MID FLAP AT WBL 95.5 LE WITH DENTS. THE DENTS WERE REPAIRED IAW COO-AMX-14-0004-02B.Feb 28, 2014 · N855AM · Boeing 737752 · Trailing Edge FlapsSDR EE4Y2014032700053Skin · dentedLOWER FUSELAGE AT BS 319 BETWEEN STRINGER 27 LT & 28 LT SKIN WITH DENT. THE DENT WAS REPAIRED IAW COO-AMX-14-0005-04B.Feb 25, 2014 · N855AM · Boeing 737752 · Fuselage Main, Plate/SkinSDR EE4Y2014041500081Cargo Track · crackedLOWER FUSELAGE AFT CARGO COMPARTMENT TRACK TIE DOWN IN THE FOLLOWING LOCATIONS BS 727B, BS 727D, BS 727E, BS 747 & BS 767 AT RBL 14 WITH CRACKS. DAMAGED PART WAS REPAIRED FOLLOWING THE SRM 53-00-53 REPAIR, UNDER THE NON-ROUTINE ITEM A1C079, 1-30.Feb 20, 2014 · N853AM · Boeing 737752 · Fuselage, Seat/Cargo Attach FittingsSDR ASMF201403004Blade · lack of lubeAIRCRAFT RETURNED TO PLATFORM DUE TO DURING TAXING, THE RT ENG VIBRATION REACHED 0.5 UNITS. ACFT WAS SENT TO THE HANGAR & MX PERFORMED LUBRICATION OF THE RT ENG FAN ROTOR BLADES & FAN DISK IAW AMM 72-21-02 & VIBRATION TEST NR 7 WAS PERFORMED IAW MM 72-00-00, Feb 15, 2014 · N906AM · Boeing 737752 · Turbine Engine Compressor SectionSDR SCNA20140217042Lens · crackedFOUND EMERGENCY LIGHT ON COAT CLOSET LENS CRACKED. REPLACED FORWARD COAT CLOSET EMERGENCY LIGHT.Feb 13, 2014 · N715SY · Boeing 737752 · Emergency LightingSDR ASMF201403003Winglet · damagedDURING TRANSIT CHECK, A LIGHTNING STRIKE WAS DETECTED IN RT WINGLET TE. MXL PERFORMED A LIGHTNING STRIKE INSPECTION IAW MM 05-51-19 DETECTING DAMAGES OUT OF LIMITS IN THE RT WINGLET. ACFT WAS SENT TO THE HANGAR & THE NRC A0214857 & A0214858 WERE ISSUED TO REFeb 11, 2014 · N906AM · Boeing 737752 · Wing, Plate/SkinSDR SCNA20140206007Switch · malfunctionedNR 1 ENGINE BLEED TRIP OFF ILLUMINATED FOLLOWED BY NR 2 ENGINE BLEED TRIP OFF. FOLLOWED BLEED TRIP PROCEDURE. FOUND WING ANTI-ICE SWITCH FAILED TO TRIP OFF DURING TAKE-OFF. SYSTEM RESTORED TO NORMAL. CLEANED AND EXERCISED ANTI ICE SWITCH AND TAI SWITCHES. PFeb 6, 2014 · N714SY · Boeing 737752 · Ice/Rain Protection SystemSDR ASMF201402011Processor · failedAIRCRAFT RETURNED OF FLIGHT DUE TO DURING TAKEOFF THE FUEL UNBALANCE LIGHT TURNED ON. DURING MX REVISION, THE FAILURE CODES 28-41109 & 28-4115 WERE DETECTED IAW AMM 28-41-00, SO THE REPORT WAS DEFERRED IAW MEL 28-6 CAT C. AN OVERWEIGHT INSPECTION WAS PERFORMJan 25, 2014 · N842AM · Boeing 737752 · Fuel Quantity SensorSDR ASMF201402009Mechanism · lack of lubeAIRCRAFT REJECTED TAKEOFF AT 60 KNOTS, DUE TO PSEU LIGHT TURNED ON. FLIGHT CREW ACCOMPLISHED THE QRH 15.4 PROCEDURE & PSEU LIGHT TURNED OFF, RESTARTING AGAIN THE TAKEOFF TO DESTINATION. AT GDL, MX PERFORMED BITE TO PSEU IAW AMM 32-09-00 & THE FIM 27-62 TASK Jan 16, 2014 · N904AM · Boeing 737752 · Drag Control SystemSDR ASMF201402008Door · openAIRCRAFT PERFORMED AN UNSCHEDULED LANDING AT MID DUE TO DURING CRUISE THERE WAS NO POTABLE WATER IN GALLEY OR LAVATORIES & THE INSTRUMENT INDICATED 3 /4 FULL. DURING MX REVISION, THE WATER TANK ACCESS DOOR PANEL NR 146ARY WAS DETECTED OPENED. SO THE PANEL WAJan 13, 2014 · N788XA · Boeing 737752 · Potable Water SystemSDR ASMF201402007Proximity Sensor · failedAIRCRAFT RETURNED OF FLIGHT DUE TO DURING CLIMB, THE LE FLAPS TRANSIT LIGHT TURNED ON, SO FLIGHT CREW ACCOMPLISHED THE QRH 9.12 PROCEDURE, CONFIRMING THE FAILURE. PERFORMED BITE TO FSEU IAW FIM 27-88 TASK 820 PROCEDURE, SHOWING FAILURE CODE 27-81207. SO THE Jan 3, 2014 · N855AM · Boeing 737752 · Leading Edge Slat Position Indicating SystemSDR ASMF201402006Nose Cowl · scratchedDURING TRANSIT CHECK, DETECTED A SCRATCH IN THE LT NOSE COWLING AT 05:30 HRS POSITION. MX PERSONNEL PERFORMED REVISION DETECTING A SCRATCH OF 2” LENGTH IN THE LT NOSE COWLING OUT OF LIMITS IAW SRM 54-10-01 ALLOWABLE DAMAGE 1, FIGURE 103 DETAIL C. THE NRC A02Dec 31, 2013 · N906AM · Boeing 737752 · Engine Cowling SystemSDR ASMF201402003Line · looseDURING TRANSIT CHECK, IT WAS DETECTED AN OIL LACK OF 6 QTS ON RT ENG. ACFT WAS SENT TO THE HANGAR & MX PERSONNEL PERFORMED ENG LEAKING INSPECTION IAW MM 79-00-00 DETECTING OIL LEAK IN THE BEARING NR 4 PRESS SUPPLY LINE SLUGGISH. THE LINE WAS TIGHTEN CORRECTIDec 25, 2013 · N855AM · Boeing 737752 · Engine Oil Distribution (Airframe Furnished)SDR SCNA20131219233Light · brokenEMERGENCY LIGHTS MOUNTED JUST FORWARD & AFT OF CABIN/FIRST CLASS COAT CLOSET, LENS & BULB ARE BROKEN. R & R COAT CLOSET MOUNTED EMERGENCY LIGHTS. OPS CHECK GOOD.Dec 17, 2013 · N714SY · Boeing 737752 · Emergency LightingSDR ASMF201312011Fuel Filter · damagedAIRCRAFT RETURNED TO PLATFORM DUE TO FUEL FILTER BY PASS LIGHT TURNED ON. PERFORMED THE FIM 73-05 TASK 801, SHOWING FAILURE CODE 730 320 52. THE RT ENG FILTER WAS REPLACED IAW AMM 73-34-01 & RT ENG WAS TESTED IAW AMM 71-00-00 TASK 71-00-00-800-F00, ALL CORREDec 15, 2013 · N908AM · Boeing 737752 · Engine Fuel DistributionSDR ASMF201312003Switch · intermittentAIRCRAFT REJECTED TAKE OFF AT 70 KNOTS WITH A GROSS WEIGHT OF 56 100 KG DUE TO EICAS MESSAGE, MASTER CAUTION & ENG CONTROL LIGHT TURNED ON. PERFORMED THE QRH 7.14 PROCEDURE, NO CONFIRMING THE FAILURE. PERFORMED BITE TO BOTH EEC IAW MM FIM 31-52 TASK 801 PROCENov 19, 2013 · N904AM · Boeing 737752 · Power LeverSDR ASMF201312001Heat Exchanger · leakingDURING OVERNIGHT CHECK, TECHNICAL PERSONNEL DETECTED A FUEL LEAK IN THE RT ENG. MAINTENANCE PERSONNEL DETECTED A LEAK IN THE HEAT EXCHANGER OUT OF ITS OPERATIONAL LIMITS, SO THE HEAT EXCHANGER WAS REPLACED IAW MM 79-21-02 & THE POWER PLANT TEST NR 3A WAS PERFNov 11, 2013 · N855AM · Boeing 737752 · Engine Fuel/Oil CoolerSDR ASMF201311012Warning System · false activationAIRCRAFT REJECTED TAKE OFF AT 90 KNOTS DUE TO THE LT ENG REVERSE LIGHT TURNED ON. PERFORMED A BITE TO EAU IAW MM 78-34-00, THE LT ENG REVERSE LIGHT TURNED OFF & NO FOUND FAILURE. THE HIGH ENERGY STOP INSPECTION WAS PERFORMED IAW MM 05-51-07, NO DAMAGES WERE Nov 7, 2013 · N904AM · Boeing 737752 · Engine Thrust ReverserSDR ASMF2013110800009Pump · leakingDURING TRANSIT CHECK, A FUEL LEAK WAS DETECTED. MAINTENANCE DETECTED THE FUEL PUMP DAMAGED ON RT ENGINE, SO FUEL PUMP WAS REPLACED IAW AMM 73-11-01 AND TESTED IAW AMM 71-00-00, ALL CORRECT.Oct 18, 2013 · N908AM · Boeing 737752 · Engine Fuel PumpSDR ASMF201311080007Blades · nickedDURING TRANSIT CHECK, DETECTED NICKS IN FOUR FAN BLADES OF THE LT ENGINE. MAINTENANCE PERFORMED REVISION DETECTING TWO NICKS WITHIN OPERATIONAL LIMITS IAW MM 72-21-02. LT ENGINE FAN BLADES REPAIRED IAW AMM 72-21-02 PAGE 804, FIG 802.Oct 14, 2013 · N853AM · Boeing 737752 · Turbine Engine Air Inlet SectionSDR ASMF201311080005Hydromech Unit · leakingDURING OVERNIGHT CHECK, A FUEL LEAK WAS DETECTED ON RT ENGINE HYDRO MECHANICAL UNIT; SO THE HYDRO MECHANICAL UNIT WAS REPLACED IAW AMM 73-21-10, TESTED CORRECT.Oct 4, 2013 · N904AM · Boeing 737752 · Fuel Control/Turbine EnginesSDR ASMF201309014A/C Pack · failedACFT RETURNED TO PLATFORM AFTER ENGINE START, THE RT PACK TRIP OFF LIGHT TURNED OFF. THE RT PACK ACM WAS REPLACED IAW AMM 21-51-04, TESTED CORRECT.Sep 7, 2013 · N855AM · Boeing 737752 · Cabin Cooling SystemSDR ASMF201309013Door · damagedDURING OVERNIGHT CHECK, MX DETECTED DELAMINATION WITH A CRACK IN THE LT NLG DOOR. FOUND OUT OF LIMITS IAW SRM 52-80-01. DOOR WAS REPLACED IAW AMM 32-22-11.Sep 6, 2013 · N853AM · Boeing 737752 · Landing Gear DoorsSDR ASMF201309004Lubrication Unit · leakingDURING TRANSIT CHECK, DETECTED AN OIL LEAK IN RT ENGINE CHIP DETECTOR. RT LUBRICATION UNIT WAS REPLACED IAW AMM 79-21-01, TESTED CORRECT.Aug 27, 2013 · N855AM · Boeing 737752 · Turbine Engine Oil SystemSDR ASMF201309002Pump · leakingDURING OVERNIGHT CHECK, MX PERSONNEL ATTENDED THE NRC A0732762 TO CORRECT FUEL LEAK IN RT ENGINE OF 40 DROPS IAW MINUTE THROUGH THE FUEL PUMP PAD DRAIN DURING IDLE POWER OPERATION. RT ENGINE FUEL PUMP WAS REPLACED IAW AMM 73-11-01, TESTED CORRECT.Aug 14, 2013 · N788XA · Boeing 737752 · Engine Fuel PumpSDR ASMF201309001Skin · damagedDURING TRANSIT CHECK, IT WAS DETECTED A LIGHTNING STRIKE IN RT WINGLET T/E AND FIN TIP FITTING TR/E OF VERTICAL STABILIZER. MX PERSONNEL PERFORMED A LIGHTNING STRIKE INSPECTION IAW MM 05-51-19 DETECTING BURNED MARKS IN RT WINGLET T/E AND FIN TIP FITTING T/E OAug 14, 2013 · N908AM · Boeing 737752 · Wing, Plate/SkinSDR ASMF201308017Warning Light · false activationACFT RETURNED DUE TO DURING CLIMB THE "EQUIP" LIGHT TURNED ON CROSSING OF 12,000 FT TO 13,000 FT. MX PERSONNEL PERFORMED REVISION TO ELECTRONIC EQUIPMENT ACCESS DOOR IAW AMM 52-48-41; BITE WAS PERFORMED TO BOTH CABIN PRESSURE CONTROLLERS IAW MM 21-32-00, THE Jul 27, 2013 · N851AM · Boeing 737752 · Air Distribution SystemSDR ASMF201308001Warning Message · false activationAIRCRAFT RETURNED DUE TO FUEL LEAK IN THE CENTRAL MAIN TANK AND "USING RESERVE FUEL" AND "INSUFFICIENT FUEL" MESSAGES DURING CLIMB; SO FLIGHT CREW ACCOMPLISHED THE QRH 12.7 PROCEDURE. AIRCRAFT LANDED. PERFORMED A FQIS OPS TEST IAW AMM 28-41-00 TASK 710-801, Jul 27, 2013 · Boeing 737752 · Fuel Quantity IndicatorSDR ASMF201308013Lubrication Unit · leakingDURING TRANSIT CHECK, AN OIL LEAK DETECTED ON RT ENGINE. MX PERSONNEL PERFORMED ENGINE LEAKING INSPECTION IAW MM 73-21-00 OIL LEAK ON THE LUBRICATION UNIT. REPLACED IAW MM 79-21-01 AND RT ENGINE WAS RAN IAW MM 71-00-00, TEST 3A, ALL CORRECT.Jul 18, 2013 · N788XA · Boeing 737752 · Engine Oil CoolerSDR ASMF201308009Rudder Pedal · out of adjustDURING TRANSIT CHECK, CAPTAIN REPORTED THE RUDDER PEDALS OUT OF SERVICE. DURING MX REVISION, THE MECHANISM AND OPERATION WAS FOUND WITHIN LIMIT OF HIS SCROLL AND JOINED. MECHANISM WAS ADJUSTED AND DETACHED IAW MM 27-21-41, TESTED CORRECT.Jul 14, 2013 · N788XA · Boeing 737752 · Rudder Tab Control SystemSDR SCNA20130626109Lens · brokenEMERGENCY LIGHT LENS ON OUTSIDE OF LAVATORY D BROKEN. REPLACED EMERGENCY LIGHT ASSY. OPS CHECKED NORMAL.Jun 26, 2013 · N715SY · Boeing 737752 · Emergency LightingSDR SCNA20130624108Sign · dislodgedEXIT LIGHT AT DOOR 2L CAME OFF. REPLACED EXIT SIGN. OK FOR SERVICE.Jun 24, 2013 · N715SY · Boeing 737752 · Emergency LightingSDR ASMF201306005Apu · damagedDURING TRANSIT CHECK, DETECTED SMOKE AND STRONG NOISE WAS HEARD IN THE APU. MX PERSONNEL PERFORMED REVISION DETECTING INTERNAL DAMAGES IN THE APU; SO THE REPORT WAS DEFERRED IAW MEL 49-1 CAT C. MX PERSONNEL REPLACED THE APU IAW AMM 49-11-00, TESTED CORRECT.Jun 12, 2013 · N851AM · Boeing 737752 · APU Core EngineSDR SCNA20130607105Fuel/Oil Cooler · leakingAFTER ROTATION, LEFT OIL QTY INDICATED ZERO. WHITE ALERT BOX DISPLAYED ON CLIMBOUT. AMBER OIL PRESS ILLUMINATED. OIL TEMP REMAINED NORMAL. REMOVED AND REPLACED FUEL OIL HEAT EXCHANGER ON NR 1 ENGINE. PERFORMED IDLE RUN. LEAK AND OPS CHECKS GOOD.Jun 6, 2013 · N715SY · Boeing 737752 · Engine Fuel/Oil CoolerSDR ASMF201306004Skin · damagedDURING TRANSIT CHECK, DETECTED RIVETS BROKEN IN RT UPPER INBD FIXED L/E SKIN PANEL. MX PERSONNEL PERFORMED REVISION DETECTING 18 RIVETS VIBRATED AT STATION WS 190 TO 204 IN RT WING UPPER INBD FIXED L/E SKIN PANEL; SO THE RIVETS WERE REPLACED IAW SRM 51-40-02 Jun 2, 2013 · N855AM · Boeing 737752 · Wing, Plate/SkinSDR ASMF201306001Pitot Tube · obstructedACFT REJECTED TAKEOFF AT 100 KNOTS, EICAS MESSAGE IAS DISAGREE AND EECS ALT MODE LIGHT TURNED ON. DURING MX REVISION, THE FAILURE CODES 73000852 AND 73008051 WERE SHOWN AND LT PITOT TUBE WAS DETECTED OBSTRUCTED BY SOLID PARTICLES; LEFT PITOT TUBE WAS REPLACEDMay 31, 2013 · N842AM · Boeing 737752 · Pitot/Static SystemSDR ASMF201305015Adiru · failedAIRCRAFT RETURNED, DURING TAKEOFF FLAGS V1, VR IN PFD 1 AND 2 WERE SHOWN WITH SHAKER AND LOW SPEED ALARM. MX PERSONNEL PERFORMED THE FIM 22-11, TASK 801 PROCEDURE, DETECTING THE 22-11759 AND 22-11365 FAILURE CODES. LT ADIRU WAS REPLACED IAW AMM 34-21-01, TMay 30, 2013 · N842AM · Boeing 737752 · Attitude Gyro and Indicating SystemSDR ASMF20130523007Unknown · vibrationCAPTAIN REPORTED THAT DURING CLIMB, THE LT ENGINE VIBRATION REACHED 2.8 UNITS AND DURING CRUISE THE VIBRATION WAS STABILIZED IN 2.3 UNITS. AIRCRAFT WAS SENT TO THE HANGAR AND MX PERSONNEL PERFORMED A TRIM BALANCE IAW AMM 71-00-00, TASK 71-00-00-700-847-G01, AMay 1, 2013 · N842AM · Boeing 737752 · Engine (Turbine/Turboprop)SDR ASMF20130523003O-Ring · leakingDURING TRANSIT CHECK, DETECTED AN OIL LEAK IN THE RT ENGINE. MX PERSONNEL PERFORMED ENGINE LEAKING INSPECTION IAW AMM 73-21-00, DETECTING OIL LEAK IN THE DIFFERENTIAL PRESSURE SWITCH, SO THE O-RINGS WERE REPLACED IAW AMM 79-21-07, TESTED CORRECT.Apr 24, 2013 · N788XA · Boeing 737752 · Turbine Engine Oil SystemSDR ASMF20130415005Bleed Valve · leakingDURING TRANSIT CHECK, IT WAS DETECTED A NICK IN A FAN BLADE OF THE LT ENGINE. MX PERSONNEL PERFORMED REVISION DETECTING THE NICK WITHIN OPERATION LIMITS IAW MM 72-21-02. THE LEFT ENGINE FAN BLADE WAS REPAIRED IAW AMM 72-21-00 PARAGRAPH G (3) FIGURE 801, ALL Apr 8, 2013 · N908AM · Boeing 737752 · Compressor Bleed ValveSDR ASMF201304003Window · damagedAIRCRAFT RETURNED TO PLATFORM, LEFT WINDOW OVERHEAT LIGHT TURNED ON. DURING MX REVISION, THE LEFT WINDOW SPARE SENSOR FAILED IAW FIM 30-41 TASK 801; SO THE LEFT WINDOW WAS REPLACED IAW AMM 56-12-11, TESTED CORRECT.Apr 1, 2013 · N904AM · Boeing 737752 · Flight Compartment WindowsSDR ASMF201304002Heat Exchanger · leakingDURING OVERNIGHT CHECK, MX PERSONNEL DETECTED A FUEL LEAK IN THE LT ENGINE FUEL SERVO HEATER AND MAIN OIL/ FUEL HEAT EXCHANGER; LT ENGINE FUEL SERVO HEATER AND MAIN OIL/ FUEL HEAT EXCHANGER WERE REPLACED IAW AMM 73-21-10 AND AMM 73-11-07, TESTED CORRECT.Mar 21, 2013 · N908AM · Boeing 737752 · Fuel HeaterSDR EE4Y2013032000021Frame · dentedAFT CARGO COMPARTMENT ON STR 24R FRAME UPPER FLANGE WITH DENT. FRAME REPAIRED IAW MESSAGE AMX-13-0016-03B.Mar 11, 2013 · N852AM · Boeing 737752 · Fuselage Main, FrameSDR EE4Y2013031800019Support Fitting · crackedRT WING NR 6 SLAT LOWER SKIN CRACKED AT ACTUATOR ROD END SUPPORT FITTING AREA AT OF SS 436. SLAT WAS REPAIRED IAW SRM 57-42-01, REPAIR 7, UNDER NON ROUTINE ITEM: A1B082, SUBJOB 6, ITEM 5.Mar 9, 2013 · N850AM · Boeing 737752 · Leading Edge DevicesSDR EE4Y2013031800018Skin · crackedRT WING NR 7 SLAT LOWER SKIN IS CRACKED AT ACTUATOR ROD END SUPPORT FITTING AREA OF SS 562. SLAT WAS REPAIRED IAW SRM 57-42-01. REPAIR 7 UNDER THE NON ROUTINE ITEM: WO 01B082, SUBJOB: 6, ITEM 4.Mar 9, 2013 · N850AM · Boeing 737752 · Leading Edge DevicesSDR EE4Y2013031800017Skin · crackedLT WING NR 3 L/E SLAT LOWER SKIN CRACKED AT SLAT ACTUATOR ATTACHMENT AREA AT OF SS 431. THE SLAT WAS REPAIRED IAW SRM 57-42-01. REPAIR 7 .Mar 8, 2013 · N850AM · Boeing 737752 · Leading Edge DevicesSDR ASMF201303019Warning Light · false activationAIRCRAFT REJECTED TAKEOFF AT 90 KNOTS, DUE TO FORWARD ENTRY DOOR LIGHT TURNED ON. DURING MX REVISION, THE FORWARD ENTRY DOOR WAS CHECKED IAW MM 52-11-00, NO DAMAGE FOUND.Feb 18, 2013 · N853AM · Boeing 737752 · Door Warning SystemSDR ASMF201303015Windshield · crackedACFT RETURNED DUE TO RT WINDSHIELD CRACKED. MX PERSONNEL REPLACED THE LT WINDSHIELD IAW MM 56-11-11, TESTED CORRECT. MX PERSONNEL PERFORMED OVERWEIGHT INSPECTION IAW MM 05-51-35, NO DAMAGES WERE FOUNDED.Feb 7, 2013 · N908AM · Boeing 737752 · Flight Compartment WindowsSDR ASMF201303016Packing · damagedDURING OVERNIGHT CHECK, A HYDRAULIC LEAK WAS DETECTED ON HYDRAULIC SYSTEM B. MX PERSONNEL DETECTED A NIPPLE PACKING DAMAGE ON FILTERS MODULE, THE PACKING WAS REPLACED IAW AMM 29-11-00, TESTED CORRECT.Jan 29, 2013 · N857AM · Boeing 737752 · Hydraulic System, MainSDR ASMF201303013Aileron Sys · out of adjustCAPTAIN REPORTED THAT DURING FLIGHT AND ON GROUND, THE AILERONS WERE HARD TO MOVE. MX PERSONNEL PERFORMED AILERON ADJUSTMENT AND TEST IAW AMM 27-11-00, ALL CORRECT.Jan 27, 2013 · N784XA · Boeing 737752 · Aileron Control System
Back to Boeing 737-752