# SDR USAAF99031

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N865US
- Make and model: Fokker F.28 MK 0100
- Registry model: [Fokker F.28 MK 0100](https://openairdocs.org/model/fokker-f-28-mk-0100) (OpenAirDocs)
- Aircraft serial: 11308
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Valve
- Part number: 715381
- Condition: Failed
- Location: Nlg Ww
- Stage of operation: AP
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAAF99031

## Discrepancy

BOS - FLT 1010 - ON APPROACH TO MHT, CREW SELECTED GEAR DOWN.  AN UNUSUAL NOISE WAS HEARD, THEN THE MAIN GEAR GREEN LGIHTS ILLUMINATED.  AFTER APPROXIMATELY 3-5 MINUTES, THE NOSE GEAR GREEN LIGHT ILLUMINATED.  FLIGHT DIVERTED TO BOS AND, AFTER TOWER FLY-BY, LANDED WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED THE LANDING GEAR SELECTOR VALVE.  (M)

---
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.