SDR DLM88001303

Service difficulty report · Valve · Doug MD88

Difficulty date: July 9, 2000
Submitted: July 14, 2000
Operation: Air carrier
Aircraft: N927DA
Make and model: Doug MD88
Aircraft serial: 49714
Aircraft time: 32,761 hours, 26,979 cycles
Engine time: 13,986 hours, 18,443 cycles
System (JASC): 2130 · Cabin Pressure Control System
Part: Valve
Condition: Stuck
Location: Rt A/C Bay
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

AIRCRAFT ATB, WOULD NOT PRESSURIZE. LT PACK ON MCO AND RT PACK WOULD NOT HOLD PRESS. REPLACED PITOT PRESSURE REGULATOR AND FLOW CONTROL VALVE. PRESSURIZED AIRCRAFT TO 4 PSID WITH LEFT PACK, THEN RIGHT PACK AND BOTH PACKS CHECKED OK. ALSO, REPLACED LT FLOW CONTORL VALVE TO REMOVE MCO FOR LEFT PACK.

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