# N78KN: 2021 Gulfstream Aerospace GVII-G500

- Status: Valid registration
- Airframe: [Gulfstream Aerospace GVII-G500](https://openairdocs.org/model/gulfstream-aerospace-gvii-g500) (registry code 3980225, 9 seats)
- Engine: [Pratt & Whitney Canada PW814GA](https://openairdocs.org/engine/pratt-whitney-canada-pw814ga) (registry code 52375)
- Data sheets: [TCDS T00021AT](https://openairdocs.org/tcds/T00021AT) (Gulfstream Aerospace Corporation), [TCDS E00093EN](https://openairdocs.org/tcds/E00093EN) (Pratt & Whitney Canada Corp.) (OpenAirDocs)
- Serial number: 72072
- Year built: 2021
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 18, 2021
- Certificate issued: May 20, 2021
- Expires: May 31, 2028
- Mode S code: AA8F1B
- Registered owner: [H4t Corp](https://openairdocs.org/faa-owner/H4T%20CORP)
- Location: [Manchester, NH](https://openairdocs.org/faa-place/NH/Manchester)
- Owner type: Corporation
- Owner's area on the map: 42.9560° N, 71.4424° W: Placed by OpenAirDocs at the center of ZIP code 03103, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=78KN
- Page: https://openairdocs.org/aircraft/N78KN

From the FAA registry file of October 27, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 10 in force

### Matched by airframe (Gulfstream Aerospace GVII-G500)

- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2026-01-03](https://openairdocs.org/ad/2026-01-03): Main Landing Gear · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Feb 24, 2026
- [AD 2024-25-03](https://openairdocs.org/ad/2024-25-03): Fuel · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Feb 12, 2025
- [AD 2024-10-15](https://openairdocs.org/ad/2024-10-15): Powerplant · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Jun 7, 2024
- [AD 2024-05-04](https://openairdocs.org/ad/2024-05-04): Fuel Boost Pump · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective May 2, 2024
- [AD 2023-11-09](https://openairdocs.org/ad/2023-11-09): Flight controls · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Jul 18, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2022-10-05](https://openairdocs.org/ad/2022-10-05): Flight controls · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective May 9, 2022
- [AD 2021-15-03](https://openairdocs.org/ad/2021-15-03): Trailing Edge Flaps · Gulfstream Aerospace GVII-G500. Effective Aug 26, 2021
- [AD 2020-02-18](https://openairdocs.org/ad/2020-02-18): Flight Controls · Gulfstream Aerospace GVI, GVII-G500 and GVII-G600. Effective Feb 13, 2020

### Matched by engine (Pratt & Whitney Canada PW814GA)

None in force.

### Historical (superseded or no longer in force)

- [AD 2020-23-04](https://openairdocs.org/ad/2020-23-04) (historical): Fuel Boost Pump · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Nov 24, 2020
- [AD 2020-05-12](https://openairdocs.org/ad/2020-05-12) (historical): Flight controls · Gulfstream Aerospace GVII-G500 and GVII-G600. Effective Mar 13, 2020

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N78KN.

## FAA accident and incident reports

None matched to N78KN.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N78KN not matched to an aircraft (15)

They name N78KN, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR ZKFR2012011103243](https://openairdocs.org/sdr/ZKFR2012011103243), Jan 11, 2012: ACTUATOR. LEAKING. RT ENGINE, INBD THRUST REVERSER ACTUATOR LEAKING. MM SPECIFICALLY STATES THERE ARE NO ALLOWABLE LEAKAGE FOR COMPONENTS, FILTERS, PRESSURE SWITCHES, TRANSDUCERS,
- [SDR ZKFR201201113243](https://openairdocs.org/sdr/ZKFR201201113243), Jan 11, 2012: ACTUATOR. LEAKING. LT ENGINE, INBD THRUST REVERSER ACTUATOR LEAKING. MM SPECIFICALLY STATES THERE ARE NO ALLOWABLE LEAKAGE FOR COMPONENTS, FILTERS, PRESSURE SWITCHES, TRANSDUCERS,
- [SDR ZKFR201112223218A](https://openairdocs.org/sdr/ZKFR201112223218A), Dec 22, 2011: CHECK VALVE. FAULTY. POTABLE WATER IN LAV HAS LOW PRESSURE AND PUMP CONTINUOUSLY CYCLES. R & R DRAIN CHECK VALVE. OPS CHECKED GOOD. INSPECTED CHECK VALVE ON BENCH AND FOUND VALVE NO
- [SDR ZKFR201112223218C](https://openairdocs.org/sdr/ZKFR201112223218C), Dec 22, 2011: PROCESSOR. FAULTED. WITH ONLY APU RUNNING, MAU 2B FAULTED RESULTING IN THE APU SHUTING DOWN. PILOT RESTARTED APU AND FAULT DID NOT RETURN. MX COULD NOT DUPLICATE PROBLEM. FAULT HIS
- [SDR ZKFR201112223218B](https://openairdocs.org/sdr/ZKFR201112223218B), Dec 22, 2011: WIRE. BROKEN. AFT BAY MX LIGHT WILL NOT STAY ON. FOUND MULTIPLE BROKEN WIRES AT AFT STEP FAIRING, SWITCH TO SPLICE, ON LT AND RT SIDE OF ACCESS DOOR. REPAIRED AFFECTED WIRES.
- [SDR ZKFR201111153188B](https://openairdocs.org/sdr/ZKFR201111153188B), Nov 15, 2011: FAN. INOPERATIVE. DURING POSTFLIGHT FOUND BOTH AFT BAY HEAT EXCHANGER FANS INOPERATIVE. R & R BOTH HEAT EXCHANGERS FANS. OPS CHECKED GOOD.
- [SDR ZKFR113188A](https://openairdocs.org/sdr/ZKFR113188A), Nov 15, 2011: FAN. INOPERATIVE. DURING POSTFLIGHT, FOUND BOTH AFT BAY HEAT EXCHANGER FANS INOP. R & R BOTH HEAT EXCHANGERS FANS. OPS CHECKS GOOD. MX RECOMMENDS OTHER OPERATORS CHECK FOR OPS AS
- [SDR ZKFR201111153188D](https://openairdocs.org/sdr/ZKFR201111153188D), Nov 15, 2011: SHUTOFF VALVE. FAILED. LT PACK FAILED IN FLIGHT WHEN THROTTLES PULLED TO IDLE. R & R LT PACK PRESSURE RELIEF SHUTOFF VALVE (PRSOV). SYS OPS CHECKS GOOD.
- [SDR ZKFR201111153188](https://openairdocs.org/sdr/ZKFR201111153188), Nov 15, 2011: CONNECTOR. DISCONNECTED. WHILE CHANGING LT AFT BAY HEAT EXCHANGER FOUND CB PANEL 3, PLUG P1634D, PIN: M FOR WIRE A201-W01-16 CAPPED AND TIED BACK CAUSING LT AFT BAY BLOWER TO BE INOPERA
- [SDR ZKFR2011131600003](https://openairdocs.org/sdr/ZKFR2011131600003), Oct 16, 2011: DISPLAY. INOPERATIVE. DURING POST FLIGHT, FOUND CMC INOPERATIVE ON CO-PILOTS MFDU. FOUND FILE SERVER 2 AFSEM 2 FAULTED. PERFORMED TARGET LOAD OF SOFTWARE LOAD 20 AND SYS CHECKED GOOD
- [SDR ZKFR2011131600002](https://openairdocs.org/sdr/ZKFR2011131600002), Oct 16, 2011: HEATER. INOPERATIVE. GALLEY DRAIN INOPERATIVE AT SINK AND COFFEE MAKER. FOUND HEATED DRAIN LINE IS NOT HEATING UP.
- [SDR ZKFR201109286209](https://openairdocs.org/sdr/ZKFR201109286209), Sep 28, 2011: CIRCUIT CARD. FAILED. FOUND CMC CARD TO BE FAILED. R & R CMC MODULE ASSY (CARD). OPS CHECKS GOOD.
- [SDR ZKFR201109233149](https://openairdocs.org/sdr/ZKFR201109233149), Sep 23, 2011: PUMP. LEAKING. ERS PUMP LEAKING. FOUND LEAKING FROM OVERBOARD DRAIN LINE. R & R ERS PUMP ASSY.
- [SDR 2010F00110](https://openairdocs.org/sdr/2010F00110), Apr 23, 2010: PUMP. MAKING METAL. DPI FOUND EXTENDED DURING PF INSPECTION. REMOVED FILTER AND FOUND MINOR METAL IN FILTER AND FILTER HOUSING. REPLACE RT HYDRAULIC ENGINE DRIVEN PUMP.
- [SDR 2010F00109](https://openairdocs.org/sdr/2010F00109), Nov 19, 2009: PUMP. MAKING METAL. DPI FOUND EXTENDED DURING INITIAL 100 HOUR INSPECTION. REMOVED FILTER AND FOUND METAL IN FILTER AND FILTER HOUSING. REPLACE RT HYDRAULIC ENGINE DRIVEN PUMP.

## STCs that may be installed (OpenAirDocs) (10)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Gulfstream Aerospace GVII-G500)

- [STC ST04570AT](https://openairdocs.org/stc/ST04570AT): Installation of SpaceX Starlink Aviation System. Gulfstream Aerospace Corporation
- [STC ST04343AT-D](https://openairdocs.org/stc/ST04343AT-D): Installation of Air Ionization System. Gulfstream Aerospace Corporation
- [STC ST04347AT-D](https://openairdocs.org/stc/ST04347AT-D): Installation of Satcom Direct Plane Simple System. Gulfstream Aerospace Corporation
- [STC ST00105IB](https://openairdocs.org/stc/ST00105IB): Introduction of Activation of Wireless Charging Systems for Portable Electronic Devices. AMAC AEROSPACE SWITZERLAND AG
- [STC ST04319AT-D](https://openairdocs.org/stc/ST04319AT-D): Installation of Satcom Direct Gateway (SDR-G) System. Gulfstream Aerospace Corporation
- [STC ST04310AT-D](https://openairdocs.org/stc/ST04310AT-D): Installation of an Airplane Interior. Gulfstream Aerospace Corporation
- [STC ST04312AT-D](https://openairdocs.org/stc/ST04312AT-D): Installation of a Ka Band JetWave System. Gulfstream Aerospace Corporation
- [STC ST04315AT-D](https://openairdocs.org/stc/ST04315AT-D): Installation of an Honeywell AIS-2000 Satellite TV System. Gulfstream Aerospace Corporation
- [STC ST04311AT-D](https://openairdocs.org/stc/ST04311AT-D): Installation of a Fin Cap Radome Replacement. Gulfstream Aerospace Corporation
- [STC ST04313AT-D](https://openairdocs.org/stc/ST04313AT-D): Installation of Gogo High Speed Data ATG-500 System. Gulfstream Aerospace Corporation

## Related

- Other Gulfstream Aerospace GVII-G500 aircraft: https://openairdocs.org/model/gulfstream-aerospace-gvii-g500/aircraft.md
- The Pratt & Whitney Canada PW814GA engine: https://openairdocs.org/engine/pratt-whitney-canada-pw814ga.md

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