# Boeing 747-2U3B - Type: Aircraft model (FAA registry) - Registry code: 1384846 - Manufacturer (registry): BOEING - Model: 747-2U3B - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 · Turbo-fan - Seats: 490 - Weight class: 20,000 lb and over - Certification: Type certificated - Registered aircraft: 0 - Page: https://openairdocs.org/model/boeing-747-2u3b Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft None registered with this model now. ## NTSB investigations (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DCA06WA049](https://openairdocs.org/ntsb/DCA06WA049), Jun 7, 2006: Boeing 747-200 (N922FT), Rio Negro, Colombia, substantial damage ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20060607031139A](https://openairdocs.org/incident/20060607031139A), Jun 7, 2006: Boeing 7472U3B (N922FT), Rio Negro, CP, Substantial damage. (-23) On take off run, the aircraft appeared to have suffered an engine failure. The pilots aborted the take off but were unable to prevent an overrun.. The… ## Service difficulty reports (125, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR WRNA200800007](https://openairdocs.org/sdr/WRNA200800007), Mar 15, 2008: CONNECTOR. DIRTY. AFTER TAKEOFF FROM MIA, NR 1 PACK INOP, UNABLE TO MAINTAIN PRESSURIZATION WITH NR 3 PACK. RETURNED TO FIELD FOR A SAFE LANDING. WHILE TROUBLESHOOTING, FOUND CON - [SDR WRNA20060031](https://openairdocs.org/sdr/WRNA20060031), Aug 1, 2006: FIRE LOOP. MALFUNCTIONED. AFTER LANDING, ON TAXI IN, RECEIVED A FIRE WARNING FOR NR 4 ENGINE, A/C WAS STOPPED, ENGINE WAS SHUT DOWN AND FIRE HANDLE WAS PULLED. INDICATIONS OF FIRE CONTIN - [SDR WRNA200600017](https://openairdocs.org/sdr/WRNA200600017), Jun 11, 2006: DIAPHRAGM. FAILED. AFTER TAKE OFF RUDDER RATIO LIGHT ILLUMINATED ABOVE 210 KNOTS, EXTINGUISHED BELOW 210 KNOTS RETURNED TO FIELD, A SAFE LANDING WAS MADE. FOUND PITOT LEAK IN LOWE - [SDR WRNA200600018](https://openairdocs.org/sdr/WRNA200600018), Jun 6, 2006: ENGINE. MALFUNCTIONED. DURING TAKEOFF, A BALL OF FIRE FROM THE LEFT SIDE WAS REPORTED ACCOMPANIED WITH A LOUD BANG, CREW BELIEVED NR 1 ENGINE HAD FAILED AND ABORT OF TAKEOFF WAS INITI - [SDR WRNA200600014](https://openairdocs.org/sdr/WRNA200600014), May 25, 2006: STATIC LINE. BROKEN. RUDDER RATIO LIGHT CAME ON IN CLIMB, .84M SPEED 300K ALT 32,000. STAYED -ON- CRUISE 39,000 AT 261K, UPPER RUDDER 2 DEGREES LEFT, LOWER RUDDER 0 DEGREES, LIGHT W - [SDR 200600296](https://openairdocs.org/sdr/200600296), Apr 3, 2006: SLIDE. NO TEST. UPPER DECK CREW ESCAPE SLIDE RELEASED BUT SLIDE DID NOT DEPLOY DURING MAINTENANCE WHEN TRYING TO SHUT DOOR. - [SDR 200600293](https://openairdocs.org/sdr/200600293), Mar 7, 2006: BULKHEAD. CORRODED. BS 1480 FWD BULKHEAD WEB, LBL 36-42, LBL 51.5 AND RBL, 24.75, CORROSION - REPAIR. THIS ECRA PROVIDES INSTRUCTIONS TO REMOVE CORROSION, HFEC INSPECT TO VERIFY AL - [SDR 200600294](https://openairdocs.org/sdr/200600294), Mar 7, 2006: FRAME. CORRODED. BS 2360 BULKHEAD LOWER AFT CHORD CORROSION. THIS PROVIDES INSTRUCTIONS TO REPAIR THE BS 2360 BULKHEAD LOWER AFT CHORD BY REMOVING THE CORROSION, TRIMMING OUT TH - [SDR WRNA200600005](https://openairdocs.org/sdr/WRNA200600005), Feb 26, 2006: FILTER. UNKNOWN. WHEN LEVELING FL 380, MACH SPD .84, WHILE SLOWLY REDUCING POWER, NR 1 ENGINE AUDIBLY COMPRESSOR STALLED, EPR FLUX ALONG WITH INCREASE IN EGT, AMBER/HIGH EGT LIG - [SDR WRNA20050029](https://openairdocs.org/sdr/WRNA20050029), Dec 10, 2005: ENGINE. MALFUNCTIONED. CLIMBING OUT THRU 16K FT, NR 2 ENGINE SHUTTERED, ACCOMPANIED BY LOUD NOISE. HIGH EGT, EPR AND OIL PRESSURE, TEMP ALL WITHIN LIMITS. SHUT DOWN NR 2 ENGINE. AIRCR - [SDR WRNA200500018](https://openairdocs.org/sdr/WRNA200500018), Jul 3, 2005: LINE. UNSERVICEABLE. T/O FROM TPE, LANDING GEAR HANDLE WOULD NOT MOVE TO UP POSITION. AIRCRAFT RETURNED TO BASE, LANDING NORMAL. FOUND HYDRAULIC LINE TO TRUCK POSITION ACTUATOR LEAK - [SDR WRNA200500016](https://openairdocs.org/sdr/WRNA200500016), Jun 21, 2005: ENGINE. DAMAGED. VERY LOUD RUMBLE ON TAKE OFF. UPON LANDING, NR 2 ENGINE WAS FOUND TO HAVE COILS MISSING FROM LT SIDE. RT SIDE DAMAGED, ALONG WITH VARIOUS OTHER AREAS OF DAMAGE - [SDR WRNA200500013](https://openairdocs.org/sdr/WRNA200500013), May 21, 2005: ENGINE. DAMAGED. NR1 ENGINE COMPRESSOR STALLED AT FL 11.5, AIRCRAFT RETURNED. LANDING NORMAL. ENGINE BOROSCOPE COMPLIED WITH, NO DISCREPANCIES NOTED. NR 1 ENGINE FAN CASING ACOU - [SDR WRNA200500012](https://openairdocs.org/sdr/WRNA200500012), Apr 28, 2005: ACTUATOR. UNSERVICEABLE. RUDDER RATIO LIGHT ILLUMINATED WHILE ACCELERATING TO 230KTS IND. AIRCRAFT RETURNED TO AIRFIELD. LANDING NORMAL. REMOVED AND REPLACED LOWER RUDDER LINEAR ACTUATO - [SDR P5CA0401032](https://openairdocs.org/sdr/P5CA0401032), Jan 29, 2004: PUSHROD. SHEARED. MAIN DECK CARGO DOOR FWD HOOK SHAFT PUSH ROD SHEARED ON OPEN SEQUENCE. INSTALLED FWD HOOK SHAFT PUSH ROD, OPS NORMAL IAW 52-32-11. - [SDR P5CA0401019](https://openairdocs.org/sdr/P5CA0401019), Dec 25, 2003: DUCT. LEAKING. BLEED AIR LEAK, APU SUPPLY DUCT AFT OF BULK CARGO COMPARTMENT. ITEM TRANSFERRED TO DMI 32017 AND MEL 49-01-01 PER DDPG. - [SDR P5CA0401017](https://openairdocs.org/sdr/P5CA0401017), Dec 23, 2003: PUSHROD. BROKEN. SIDE CARGO DOOR FAILS TO OPEN. FOUND PUSH ROD BROKEN HOOK ACTUATOR FWD SIDE. REMOVED AND REPLACED ROD AS PER MM 52-32-00, OPS CHECK, OPERATION CHECK NORMAL. - [SDR P5CA0301016](https://openairdocs.org/sdr/P5CA0301016), Dec 21, 2003: SKIN. DAMAGED. MAIN DECK CRG DOOR FAILED TO CLOSE - DOOR SKIN DAMAGED. PERFORMED TIME LIMITED REPAIR TO DOOR IAW SL TLS-JFK 03-00243H AND SRM COI WAS ISSED AND DOOR DEFERRED E - [SDR P5CA0301010](https://openairdocs.org/sdr/P5CA0301010), Dec 21, 2003: FCU. FAILED. NR 3 ENG WOULD NOT START, NO FUEL FLOW. CHECKED FUEL CONDITION MOTOR OPS NRML S/OFF VALVE ON FRONT SPAR CHECKED NORMAL. PERFORMED FUEL PUMP PRESS TEST ON FP 12 - [SDR P5CA0301008](https://openairdocs.org/sdr/P5CA0301008), Dec 20, 2003: VALVE. FAILED. NR 1 ENG FUEL HEAT FAILED IN OPEN POS WITH ICING LIGHT ON, FUEL TEMP MAX. PER FIM 73-01-00 PG 203 FOUND ZERO VOLTAGE AT SOCKETS BAND ON FUEL HEAT VLV CONNECTOR. - [SDR P5CA0301009](https://openairdocs.org/sdr/P5CA0301009), Dec 19, 2003: ROD. DEFECTIVE. SIDE CARGO DOOR FAILS TO CLOSE. REPLACED INPUT ROD TO FWD HOOK TORQUE TUBE IAW 52-32-11. - [SDR P5CA0301007](https://openairdocs.org/sdr/P5CA0301007), Dec 16, 2003: CONTROL UNIT. MALFUNCTIONED. AFTER T/O - INBOARD TRAILING EDGE FLAPS HUNG AT 5 DEGREES RETRACTED BY ALTS SYS ON EXTENSION I/B FLAPS HUNG AT 5 DEGREES EXTENDED BY ALT SYS. REPLACED NO COAST - [SDR P5CA0300991](https://openairdocs.org/sdr/P5CA0300991), Nov 16, 2003: ENGINE. FAILED. NR 2 ENGINE FAILED IN FLT LOUD RUMBLE FOLLOWED BY LOSS OF POWER HIGH EGT VIBRATION OIL LOSS. REPLACED NR 2 ENG PER MM 71-00-002. - [SDR P5CA0300986](https://openairdocs.org/sdr/P5CA0300986), Nov 14, 2003: INDICATOR. FAILED. ON ENGINE START NR 2 INDICATED NO OIL PRESS ON F/E PANEL OR FORWARD PANEL. REPLACED NR 2 ENGINE OIL PRESS INDICATOR SYSTEM CHECKS GOOD IAW MM 79-30-00. - [SDR P5CA0300977](https://openairdocs.org/sdr/P5CA0300977), Oct 31, 2003: FRAME. DAMAGED. MAIN DECK CARGO AREA, FUSELAGE FRAME, STA 1700 RT SIDE S-1 TO S-11 FRAME DAMAGE. REMOVED DAMAGED PORTION OF FRAME SECTION. REPAIR ACCOMPLISHED IAW SRM 53-10-04. - [SDR P5CA0300966](https://openairdocs.org/sdr/P5CA0300966), Oct 14, 2003: INDICATOR. FLUCTUATES. FIRST OFFICER'S BARBER POLE IN AIRSPEED INDICATOR FLUCTUATES, CAUSING MACH WARNING TO GO OFF. REPLACED A/S INDICATOR. - [SDR P5CA0300967](https://openairdocs.org/sdr/P5CA0300967), Oct 14, 2003: CSD. MALFUNCTIONED. ON TAXI, NOTED NR 2 & 4 GENERATOR SHOWED NO KW'S AND NO VOLTAGE FREQUENCY. ALSO, NR 3 CSD LIGHT ON FLIGHT ENGINEER'S PANEL - READ ANNUNCIATOR. SERVICED NR 2 & 4 - [SDR P5CA0300959](https://openairdocs.org/sdr/P5CA0300959), Oct 4, 2003: RIB. DENTED. LT HORIZONTAL STABILIZER RIB CRACKED STABILIZER L/E STA 285 - 4 INCH CRACK. REMOVED LT HORIZONTAL STABILIZER DUE TO FOUND DENTED & REPAIRED RIB (4 INCH CRACK) A - [SDR P5CA0300951](https://openairdocs.org/sdr/P5CA0300951), Sep 23, 2003: CONTROL QUADRANT. FAULTY. RUDDER RADIO LIGHT CAME ON WHEN FLAPS MOVING 5 TO 1 AT 220KNTS. REMOVED AND REPLACED RUDDER UPPER CONTROL IAW 27-21-13 LEAK CHECK GOOD. - [SDR P5CA0300956](https://openairdocs.org/sdr/P5CA0300956), Sep 22, 2003: SKIN. CRACKED. RT OUTBOARD MID FLAP COVE PNL DELAMINATED / CRACKED - 24 INCH LONG - WBL 660. REPAIRED DAMAGE AREA - [SDR P5CA0300955](https://openairdocs.org/sdr/P5CA0300955), Sep 22, 2003: PUSH-PULL CABLE. FAILED. NR 4 ENGINE THROTTLE BINDED NR 4 ENG FUEL CONDITION MOTOR POPPED C/B. REPLACED ENGINE PUSH PULL CABLE IAW MM 76-11-07 OPS CK OK. REPAIRED WIRE IAW STANDARD PRAC - [SDR P5CA0300953](https://openairdocs.org/sdr/P5CA0300953), Sep 22, 2003: ACTUATOR. DEFECTIVE. RUDDER RATIO LIGHT CAME ON AFTER FLAPS UP. REPLACED LOWER RUDDER RATIO CHANGER ACTUATOR IAW MM 27-21-12 - [SDR P5CA0300952](https://openairdocs.org/sdr/P5CA0300952), Sep 22, 2003: ACTUATOR. DEFECTIVE. RUDDER RATIO LIGHT CAME ON AFTER FLAPS UP. REPLACED UPPER RUDDER RATIO CHANGER ACTUATOR AND ADJUSTED UPPER RUDDER IAW MM 27-21-12 AND 27-21-00. - [SDR P5CA0300939](https://openairdocs.org/sdr/P5CA0300939), Sep 8, 2003: WIRE. DAMAGED. RT WING LEADING EDGE OVERHEAT LIGHT ON WITH SMALL INCREASE OF PWR. FOUND DAMAGED WIRE AT SWITCH 1046 REPAIRED WIRE PER 20-50-2. - [SDR P5CA0300940](https://openairdocs.org/sdr/P5CA0300940), Sep 8, 2003: CONNECTOR. DISCONNECTED. AFT 20 MINUTES INTO CRUISE RT WING L/E OVERHEAT LIGHT ILLUMINATED. REMAINED ON UNTIL BLOCK IN. FOUND NR 3 PYLON DETECTOR S1046 SHORTED. DISCONNECTED S1046. ITEM - [SDR P5CA0300938](https://openairdocs.org/sdr/P5CA0300938), Sep 7, 2003: DUCT. LOOSE. RT WING L/E OVERHEAT LIGHT CAME ON TAXI OUT. REMAINED ON WHEN ISOLATED. FOUND LOOSE DUCT LEADING TO NR 3 LEADING EDGE FLAP MOTOR. TIGHTENED AS REQUIRED SYS LEAK - [SDR P5CA0300933](https://openairdocs.org/sdr/P5CA0300933), Aug 31, 2003: PUMP. LEAKING. LOSS HYD FLUID NR 4 SYS. NR 4 EDP REMOVED AND DEACTIVATED INSTALLED DEACTIVATION KIT IAW MEL 29-01-A TRASFERRED TO DMI 31340. - [SDR P5CA0300924](https://openairdocs.org/sdr/P5CA0300924), Aug 24, 2003: HYDRAULIC LINE. RUPTURED. NR 1 HYDRAULIC SYS QUANITITY AND PRESSURE DROPPED TO ZERO AT STARTUP. SWAPPED PRESSURE LINE FROM NR 2 TO NR 1. CAPPED NR 2 ADP LINE FITTINGS. PERFORMED LEAK CHE - [SDR P5CA0300925](https://openairdocs.org/sdr/P5CA0300925), Aug 22, 2003: COMPRESSOR. STALLED. ENGINE COMPRESSOR STALL ON DESCENT. REMOVED AND REPLACED NR 3 ENG, REF PAC ENG CHANGE WORK CARDS 7100-002. - [SDR P5CA03000915](https://openairdocs.org/sdr/P5CA03000915), Aug 17, 2003: FUEL CONTROL. OVERHEATED. ON DESCENT INTO HKG AT FL 360 NR 3 ENG FUEL TEMP WENT OFF SCALE HOT AND NR 3 ENG STALLED OUT. CORRECTIVE ACTION TAKEN: REPLACED NR 3 ENG FUEL CNTRL IAW AMM 73-2 - [SDR P5CA03000316](https://openairdocs.org/sdr/P5CA03000316), Aug 17, 2003: COMPRESSOR. STALLED. NR 3 ENG COMPRESSOR STALLED AT FL 330 FUEL TEMP PEGGED AT OFF SCALE HOT AND OIL TEMP WENT TO 150 DRGS. PREFORMED 8TH STAGE BLEED CHECK VALVE. CHECKED P/R LINE O - [SDR P5CA0300914](https://openairdocs.org/sdr/P5CA0300914), Aug 16, 2003: VALVE. MALFUNCTIONED. PRIOR TO DESCENT APPLIED FUEL HEAT TO NR 3 ENG, FUEL HEAT DID COME DOWN AND PEGGED HOT ENG STALL ON DESCENT. PERFORMED A PRECAUTIONARY ENG SHUT DOWN AT 1600 FT - [SDR P5CA0300911](https://openairdocs.org/sdr/P5CA0300911), Aug 11, 2003: ENGINE. POWER LOSS. NR 3 ENG STALL CONDITION AFTER DESCENT FROM FL 330. PERFORMED FULL NR 3 ENG INSP. SUMPED ALL FUEL TANKS. CHECKED AND INSPECTED EVBC SCREEN. CHECKED FCU LINES FO - [SDR P5CA0300910](https://openairdocs.org/sdr/P5CA0300910), Aug 11, 2003: FILTER. CONTAMINATED. ON DECENT NR 3 ENG HAD STALLED CONDITION. AT FL 290 SHUT DOWN. ON SECOND RESTART WITH FUEL HEAT APPLIED OPERATION NORMAL. CORRECTIVE ACTION TAKEN: REMOVED FUEL - [SDR P5CA0300906](https://openairdocs.org/sdr/P5CA0300906), Aug 3, 2003: CDU. MALFUNCTIONED. NR 1 INS DISPLAY WENT BLANK AFTER PUSH BACK WARNING LIGHT CAME ON AND ADI TUMBLED. SWAPPED NR 1 CDU AND NR 3 CDU OPERATIONAL CHECK NORMAL PER MM 34-41-02. - [SDR P5CA0300894](https://openairdocs.org/sdr/P5CA0300894), Jul 3, 2003: CONNECTOR. DIRTY. NR 2 ENG WILL NOT START. NO FUEL FLOW. NR 2 ENG FUEL CONDITION ACTUATOR PLUG CLEANED AND RESECURED. ACTUATOR EXERCISED. ENG START SATIS. SUSPECT WIRING TO FUEL - [SDR P5CA0300895](https://openairdocs.org/sdr/P5CA0300895), Jul 3, 2003: ACTUATOR. MALFUNCTIONED. NR 2 ENGINE FAILED TO START (NO FUEL) AFTER SECOND ATTEMPT. PRESSURE CHECKED FUEL PUMP IAW MM 71-00-00. REMOVED FUEL CONDITION ACTUATOR CHECKED SHAFT. REINSTALL - [SDR P5CA0300896](https://openairdocs.org/sdr/P5CA0300896), Jun 3, 2003: COUPLING. SHEARED. NR N2 INDICATION ON NR 3 ENGINE, DURING START - ENGINE DID NOT START PYLON AND START VALVE LIGHTS SHOW AIR PRESS TO STARTER BUT NO ROTATION. REMOVED AND REPLACE - [SDR P5CA03000885](https://openairdocs.org/sdr/P5CA03000885), May 30, 2003: WARNING LIGHT. ILLUMINATED. ON T/O NR 4 ENG FIRE DET A-LOOP ILLUMINATED FIRE LIGHT. B-LOOP NORMAL. ITEM WAS DEFERRED PER THE DDPG AFTER IT WAS DETERMINED THAT ONE LOOP WAS OPERATIONAL. DEF - [SDR P5CA0300884](https://openairdocs.org/sdr/P5CA0300884), May 28, 2003: CLAMP. LOOSE. BOTH A&B NR 2 NACELLE TEMP SPIKING RETARDED THROTTLE NACELLE INDICATIONS NORMAL. ON LEAK CK FOUND FAILED DUCT CLAMP BETWEEN HEAT EXCHANGER & ENG DUCT. INSTALLED All 125: https://openairdocs.org/model/boeing-747-2u3b/reports.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.