SDR EYD2008F00000

Service difficulty report · Check Valve · Braero HS125700A

Difficulty date: July 27, 2008
Submitted: August 6, 2008
Operation: Air carrier
Aircraft: N411PA
Make and model: Braero HS125700A
Aircraft serial: NA0211
Engine: Garrtt TFE731*
System (JASC): 3130 · Data Recorders (Flight/Maintenance)
Part: Check Valve
Part number: 1301561
Condition: Failed
Location: Cabin Pressure
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WHILE ENROUTE, THE FLIGHT CREW EXECUTED AN EMERGENCY DESCENT DUE TO A "CABIN ALTITUDE" WARNING LIGHT, MAINTENANCE HAS FOUND 2 DEFECTIVE CHECK VALVES, PN 130156-1 AND 2 PRESSURE REGULATORS, PN 1024665, THAT WERE SUSPECT. ARE ALSO REPLACING THE ENTRY DOOR SEAL AS A PRECAUTION. (K)