# N609FF: 1971 Boeing 747-121, registration cancelled 2013-10-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 24, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Boeing 747-121](https://openairdocs.org/model/boeing-747-121) (registry code 1384871)
- Engine: [Pratt & Whitney JT9D-3A](https://openairdocs.org/engine/pratt-whitney-jt9d-3a) (registry code 52050)
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE), [TCDS E20EA](https://openairdocs.org/tcds/E20EA) (OpenAirDocs)
- Serial number: 20354
- Year built: 1971
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: July 23, 1971
- Certificate issued: August 16, 1993
- Last registry action: February 13, 2006
- Mode S code: A7E931
- Owner when cancelled: [Tower Air Inc](https://openairdocs.org/faa-owner/TOWER%20AIR%20INC)
- Location: [Jamaica, NY](https://openairdocs.org/faa-place/NY/Jamaica)
- Owner type: Corporation
- Owner's area on the map: 40.6470° N, 73.7873° W: Placed by OpenAirDocs at the center of ZIP code 11430, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N609FF
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=609FF
- Page: https://openairdocs.org/deregistered/N609FF-2013-10-24

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Boeing 747-121: https://openairdocs.org/model/boeing-747-121.md

## Service difficulty reports (47)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR TWRA9806](https://openairdocs.org/sdr/TWRA9806), Feb 4, 1998: SLIDE. BROKEN. DURING SCHEDULED SLIDE DEPLOYMENT AT 5L DOOR, SLIDE FAILED TO DEPLOY. ON INVESTIGATION FOUND LEFT SIDE RELEASE CABLE WOULD NOT PULL PIN OUT OF THE PACKBOARD DUE
- [SDR TWRA97196](https://openairdocs.org/sdr/TWRA97196), Nov 4, 1997: HYD PUMP. CRACKED. AFTER TAKEOFF, NR 4 HYDRAULIC SYSTEM DECREASED TO 4 GALLONS. ENGINE PUMP DPERSSURIZED QUANTITY CONTINUED TO DECREASE. AIRCRAFT TURNBACK JFK. REMOVED AND REPLACE
- [SDR TWRA97197](https://openairdocs.org/sdr/TWRA97197), Oct 30, 1997: LIGHT. LOOSE. DURING B-SERVICE, FOUND UPPER DECK EXIT LIGHT ON TOP OF SPIRAL STAIRCASE PEDESTAL LOOSE AND TAPED UP. REPLACED EXIT SIGN LIGHT AS PER MM 33-51-00. OPERATIONAL C
- [SDR TWRA97188](https://openairdocs.org/sdr/TWRA97188), Oct 29, 1997: WINDOW. CRACKED. DURING B-SERVICE, FOUND PASSENGER CABIN WINDOW NR 29L CRACKED AT LEADING EDGE OF WINDOW. REMOVED AND REPLACED CABIN WINDOW NR 29L AS PER MM 56-21-01. (M)
- [SDR TWRA97187](https://openairdocs.org/sdr/TWRA97187), Oct 28, 1997: SLIDE STRAP. BROKEN. WHILE ATTEMPTING A SLIDE/RAFT DEMONSTRATION FOR A GROUP OF FLIGHT ATTENDANTS AT JFK, THE SLIDE FAILED TO DEPLOY DUE TO GRID LANYARD STRAP SNAPPED IN HALF (SLIDE
- [SDR TWRA97157](https://openairdocs.org/sdr/TWRA97157), Jun 26, 1997: LIGHT. INOPERATIVE. DURING DAILY SERVICE, FOUND R4 DOOR UPPER BUSTLE LIGHT INOPERATIVE. REMOVED AND REPLACED BUSTLE LIGHT. OPS CHECKED OK PER MM 33-51-00. (X)
- [SDR TWRA97152](https://openairdocs.org/sdr/TWRA97152), Jun 20, 1997: HYDRAULIC LINE. FAILED. DURING CLIMB-OUT, EN ROUTE FROM LAX, LOST NR 1 HYDRAULIC SYSTEM. MAINTENANCE AT JFK FOUND HYDRAULIC PRESSURE LINE SHEARED INSIDE NR 1 PYLON. REMOVED AND REPLACE
- [SDR TWRA97150](https://openairdocs.org/sdr/TWRA97150), Jun 16, 1997: FUSE. BLOWN. DURING DAILY SERVICE, FOUND R3 MED EXIT SIGN INOP. INSTALLED FUSE ON POWER SUPPLY, OPS CHECK OK PER MM 33-51-00. (M)
- [SDR TWRA97119](https://openairdocs.org/sdr/TWRA97119), May 22, 1997: LIGHT. INOPERATIVE. DURING DAILY CHECK, FOUND RIGHT SIDE OVERWING EMERGENCY LIGHT 2ND FROM FRONT ONE, BULB INOP. REPLACED ASSEMBLY, OPS CHECK GOOD PER MM 33-51-00. (M)
- [SDR TWRA9120](https://openairdocs.org/sdr/TWRA9120), May 22, 1997: WIRE. BROKEN. DURING DAILY CHECK, FOUND 3AC BOTH SEAT EGRESS LIGHTS INOP. REPAIRED BROKEN WIRE BY SEAT 3AC. OPS CHECKED OK PER MM 33-51-00. (M)
- [SDR TWRA97121](https://openairdocs.org/sdr/TWRA97121), May 21, 1997: WIRE. BROKEN. DURING DAILY CHECK, FOUND R1 DOOR BUSTLE EMERGENCY LIGHT INOP. REPLACED LIGHT ASSEMBLY AND REPAIRED BROKEN WIRE. OPS CHECKED GOOD PER MM 33-51-00. (M)
- [SDR TWRA9798](https://openairdocs.org/sdr/TWRA9798), May 13, 1997: LINE. FAILED. NR 3 HYDRAULIC SYSTEM QUANTITY DECREASED FROM 7.8 AT BEGINNING OF FLIGHT TO 5.4 GALLONS AT END OF FLIGHT. REPLACED FLEX LINE WITH SOLID RIGID LINE PER MM 29-11-
- [SDR TWRA9794](https://openairdocs.org/sdr/TWRA9794), May 10, 1997: CONTROL UNIT. MALFUNCTION. DURING TAKEOFF, RUDDER RATIO LIGHT CAME ON. RE-SEATED CONNECTOR ON RUDDER RATIO COMPARATOR. OPS CHKS OK PER MM 27-21-12, PAGES 501-504. ITEM REPEATED 5-12-97. R
- [SDR TWRA97108](https://openairdocs.org/sdr/TWRA97108), May 5, 1997: WIRE. BROKEN. JFK - DURING DAILY SERVICE, FOUND UPPER DOOR BUSTLE LIGHT INOPERATIVE AT 1L MED. ALSO, ABOVE AISLE MOUNTED EXIT SIGN INOPERABLE. FOUND BROKEN WIRE AT BUSTLE AND
- [SDR TWRA9779](https://openairdocs.org/sdr/TWRA9779), Apr 26, 1997: WIRE. BROKEN. DOOR BUSTLE LIGHT INOP AT R-1 DOOR DURING DAILY SERVICE AT JED. FOUND BROKEN WIRE AT PIN 15 JUMPER, REPLACED PIN. OPS OK PER 33-51-00. (M)
- [SDR TWRA9778](https://openairdocs.org/sdr/TWRA9778), Apr 22, 1997: WIRE. BROKEN. DURING DAILY SERVICE AT JED, FOUND SEAT MOUNTED EVAC LIGHTS INOP, RIGHT SIDE 'B' ZONE. REPAIRED BAD WIRE AT SEAT 17 HJK OPS CHECK OK, PER MM 33-51-00. (M)
- [SDR TWRA9763](https://openairdocs.org/sdr/TWRA9763), Mar 28, 1997: WIRE. BROKEN. DURING DAILY SERVICE AT JFK, FOUND SEAT 13C SIDE MOUNTED EVAC LIGHT INOP. FOUND BROKEN GROUND WIRE, REPAIRED WIRE. SYSTEM OPS OK. (M)
- [SDR TWRA9744](https://openairdocs.org/sdr/TWRA9744), Mar 28, 1997: OIL FILTER. DIRTY. THREE MINUTE INTO CLIMB NR 4 ENGINE LOWER OIL PRESSURE LIGHT ILLUMINATED. RETARDED TO 55 PERCENT N1 BEFORE LT WOULD EXTINGUISH. CHANGED OIL FILTER AND CHECKED O
- [SDR TWRA9720](https://openairdocs.org/sdr/TWRA9720), Feb 14, 1997: LIGHT. INOPERATIVE. DURING DAILY CHECK, FOUND EMERGENCY CEILING LIGHT INOP AT 36 ABC. REMOVED AND REPLACED EMERGENCY LIGHT. OPS CHECK NORMAL AS PER MM 33-51-00. (M)
- [SDR TWRA9701](https://openairdocs.org/sdr/TWRA9701), Jan 6, 1997: RECEIVER. MALFUNCTION. DURING CLIMB-OUT, AFTER TAKEOFF CREW SMELLED ELECTRICAL EQUIPMENT BURNING. FLIGHT OFFICER HAD OFF FLAG ON VOR OPENED C/B'S AND SMELL WENT AWAY SUSPECT F/O VOR. 
- [SDR TWRA9702](https://openairdocs.org/sdr/TWRA9702), Jan 4, 1997: LIGHT. INOPERATIVE. DURING DAILY CHECK, FOUND 4R DOOR BUSTLE LIGHT INOP. REMOVED AND REPLACED LIGHT ASSEMBLY PER MM 33-51-00. OPS CHECKED NORMAL. (M)
- [SDR TWRA96382](https://openairdocs.org/sdr/TWRA96382), Dec 25, 1996: FIRE LOOP. FAULTY. DURING TAXI, NR 2 ENG 'A' FIRE LOOP WENT TO FAULT. FULL SCALE 'B' LOOP TESTED OK WITH ALL OTHER IND NORM. JUST AFTER V1 NR 2 ENGINE 'B' LOOP WENT TO FULL SCALE 
- [SDR TWRA96388](https://openairdocs.org/sdr/TWRA96388), Dec 20, 1996: BATTERY PACK. DISCHARGED. DURING 'B' SERVICE, FOUND 'C' ZONE LEFT AND RIGHT SIDE EMERGENCY LIGHT INOP. REMOVED AND REPLACED BATTERY PACK PER MM 33-51-00. OPS CHECKED NORMAL. (M)
- [SDR TWRA96387](https://openairdocs.org/sdr/TWRA96387), Dec 20, 1996: BATTERY PACK. DISCHARGED. DURING B-CHECK, FOUND EXIT SIGN INOP AT R2 DOOR, L2 DOOR, L3 DOOR. REMOVED AND REPLACED BATTERY PACK. OPS CHECKED NORMAL PER MM 33-51-00. (M)
- [SDR TWRA96386](https://openairdocs.org/sdr/TWRA96386), Dec 20, 1996: LIGHT ASSEMBLY. INOPERATIVE. DURING B-CHECK, FOUND CEILING LIGHT INOP AT 'A' ZONE LEFT SIDE, B-ZONE RIGHT SIDE AND LEFT SIDE FORWARD, R1 DOOR AND L1 DOOR. REMOVED AND REPLACED LIGHT ASSEMBL
- [SDR TWRA96360](https://openairdocs.org/sdr/TWRA96360), Nov 19, 1996: SLIDE. FAILED. DURING TRAINING TEST, 4L MAIN ENTRY DOOR SLIDE FAILED TO DEPLOY CORRECTLY DUE TO ASPIRATOR HOSE 'B' FITTING FAILURE, SLIDE P/N D30440105 S/N 0817. REMOVED AND R
- [SDR TWRA96359](https://openairdocs.org/sdr/TWRA96359), Nov 19, 1996: PIN. SHEARED. DURING TRAINING TEST 2R DOOR, DOOR ASSIST BOTTLE DID NOT DEPLOY OR DISCHARGE BOTTLE ON SLIDE DEPLOYMENT OPERATION, CABLE ATTACHMENT PIN SHEARED. RIGHT FUSELAGE 
- [SDR TWRA96296](https://openairdocs.org/sdr/TWRA96296), Aug 22, 1996: LIGHT. INOPERATIVE. DURING DAILY CHECK, FOUND CREW DOOR OVERHEAD EXIT SIGN INOP. REPLACED EMERGENCY LIGHT CREW DOOR EXIT SIGN. OPS CHECKED OK PER MM 33-51-00. (M)
- [SDR TWRA96288](https://openairdocs.org/sdr/TWRA96288), Aug 21, 1996: LIGHT. INOPERATIVE. DURING DAILY CHECK, FOUND 3L OVERWING EXIT LIGHT INOP. REMOVED AND REPLACED 3L OVERWING 'EXIT LIGHT' PER MM 33-51-00 PG 401. OPS CHECKED NORMAL. (M)
- [SDR TWRA96287](https://openairdocs.org/sdr/TWRA96287), Aug 21, 1996: BATTERY PACK. DISCHARGED. DURING DAILY CHECK, FOUND EXIT SIGN ABOVE ROW 32 HJK INOP. REPLACED BATTERY PACK. OPS CHECKED OK PER MM 33-51-00 PAGE 501. (M)
- [SDR TWRA96267](https://openairdocs.org/sdr/TWRA96267), Aug 8, 1996: BATTERY PACK. DISCHARGED. DURING DAILY CHECK, FOUND 3R DOOR UPPER EVAC LIGHT OUT. REMOVED AND REPLACED BATTERY PACK. OPS CHECKED OK AS PER MM 33-51-00. (M)
- [SDR TWRA96261](https://openairdocs.org/sdr/TWRA96261), Aug 5, 1996: ROLLER CRANK. BROKEN. ON POST FLIGHT INSPECTION, FOUND L3 DOOR LIGHT ON IN COCKPIT WITH DOOR CLOSED. REMOVED UPPER GATE AND UPPER GATE CONTROL ROD. REMOVED TORQUE TUBE, LOWER GATE CO
- [SDR TWRA96264](https://openairdocs.org/sdr/TWRA96264), Aug 2, 1996: WIRE. BROKEN. DURING DAILY CHECK, FOUND EVAC LIGHT UPPER DECK NEAR FLOOR FORWARD OF CREW SLIDE IS INOPERATIVE. REPAIRED BROKEN WIRE TO LIGHT ASSEMBLY. OPS CHECKED NORMAL PER 
- [SDR TWRA96205](https://openairdocs.org/sdr/TWRA96205), Jul 21, 1996: BULB. FAILED. DURING DAILY CHECK, FOUND SEAT 45C EVAC LIGHT INOP. REPLACED BULB, OPS CHECK NORMAL PER MM 33-51-00. (M)
- [SDR TWRA96204](https://openairdocs.org/sdr/TWRA96204), Jul 21, 1996: CONNECTOR. LOOSE. DURING DAILY CHECK, FOUND L1 MED UPPER BUSTLE EVAC LIGHT INOP. FOUND CANNON PLUG OFF OF BUSTLE. RECONNECTED, OPS CHECK NORMAL PER MM 33-51-00. (M)
- [SDR TWRA96207](https://openairdocs.org/sdr/TWRA96207), Jul 19, 1996: TERMINAL. FAILED. DURING DAILY CHECK, FOUND LEFT SIDE STATION 1600 EXTERIOR EMERGENCY LIGHTS INOP. REPLACED TERMINAL. OPS CHECK OK PER MM 33-51-00. (M)
- [SDR TWRA96206](https://openairdocs.org/sdr/TWRA96206), Jul 19, 1996: BULB. FAILED. DURING DAILY CHECK, FOUND UPPER DECK CREW DOOR EXIT LIGHT OUT OF SERVICE. RELAMPED, OPS CHECK OK PER MM 33-51-00. (M)
- [SDR TWRA96191](https://openairdocs.org/sdr/TWRA96191), Jul 18, 1996: WIRE. BROKEN. DURING DAILY CHECK, FOUND 30ABC, 40ABC, 58ABC SEAT EVAC LIGHT INOP. REPAIRED BROKEN WIRE UNDER SEAT, OPS CHECK OK PR MM 33-51-00. (M)
- [SDR TWRA96190](https://openairdocs.org/sdr/TWRA96190), Jul 18, 1996: BULB. FAILED. DURING DAILY CHECK, FOUND 7ABC SEAT EVAC LGHT INOP. RELAMPED 7ABC. OPS CHECK OK PER MM 33-51-00. (M)
- [SDR TWRA9677](https://openairdocs.org/sdr/TWRA9677), Jun 28, 1996: BATTERY PACK. DISCHARGED. DURING DAILY SERVICE, FOUND OVERHEAD 'EVAC' LIGHTS IN AREA OF SEAT ROW 32K AND EMERGENCY EXIT SIGN INOPERATIVE. REPLACED BATTERY PACK, OPS CHECK OK. MM 33-51-00
- [SDR TWRA9676](https://openairdocs.org/sdr/TWRA9676), Jun 28, 1996: BATT CHARGER. MALFUNCTIONED. DURING DAILY SERVICE, FOUND 'EVAC' CEILING LIGHT INOP AJACENT TO SEAT 71C. FOUND BATTERY PACK LOW VOLTS, REPLACED CHARGER, OPS CHECK OK. (M)
- [SDR TWRA9674](https://openairdocs.org/sdr/TWRA9674), Jun 28, 1996: FUSE. BLOWN. DURING DAILY CHECK, FOUND LEFT EXTERIOR 3RD EVAC LIGHT IS INOP. REPLACED FUSE FOR EXTERIOR LIGHT ASSEMBLY. OPS CHECK OK MM 33-51-00. (M)
- [SDR TWRA9648](https://openairdocs.org/sdr/TWRA9648), Jun 24, 1996: DOOR. DAMAGED. DURING POST-FLIGHT, FLT 112, MAINTENANCE REPRESENTATIVE FOUND RIGHT WING GEAR STRUT DOOR DAMAGED, UPPER STRUT DOOR HINGES INTACT, DOOR BROKEN IN TWO, LOWER STRU
- [SDR TWRA9552](https://openairdocs.org/sdr/TWRA9552), Aug 26, 1995: ACM. FAILED. BLOCK TURNBACK, DUE TO SMOKE IN CABIN. UPON RETURNING TO GATE, MAINTENANCE FOUND NR 2 AIR CYCLE MACHINE HAD FAILED. REMOVED AND REPLACED THE NR 2 AIR CYCLE MACH
- [SDR TWRA9517](https://openairdocs.org/sdr/TWRA9517), Mar 19, 1995: EEL BULB. FAILED. ON DAILY CHECK, FOUND LEFT SIDE C-ZONE NR 1 CEILING (EMERGENCY LIGHT) INOPERABLE. REPLACED LIGHT BULB, OPS CHECK OK. (W)
- [SDR TWRA9513](https://openairdocs.org/sdr/TWRA9513), Feb 24, 1995: SUPPORT FITTING. CORRODED. DURING B-SERVICE WHILE INSPECTING 5L MAIN ENTRY DOOR FITTING, FOUND AFT GIRT BAR FITTING CORRODED. REPLACED FITTING AND ATTACHING HARDWARE. INSPECTED PER SB 747
- [SDR TWRA9512](https://openairdocs.org/sdr/TWRA9512), Feb 24, 1995: SUPPORT FITTING. CORRODED. DURING B-SERVICE, WHILE INSPECTING 2L M.E.D. GIRT BAR FITTING, FOUND TWO STEEL PINS (HIGH LOCK FASTENERS) CORRODED. REPLACED FITTING AND ATTACHING HARDWARE. INS

## Other aircraft with N609FF

- [Cancelled 1972-08-25](https://openairdocs.org/deregistered/N609FF-1972-08-25): Consolidated Vultee PBY-5A, S/N 369, built 1943. Exported to Australia. Owner: [Firefly Inc](https://openairdocs.org/faa-owner/FIREFLY%20INC), [Portland, OR](https://openairdocs.org/faa-place/OR/Portland)

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