SDR DL757020665

Service difficulty report · Valve · Boeing 757232

Difficulty date: June 14, 2002
Submitted: June 21, 2002
Operation: Air carrier
Aircraft: N669DN
Make and model: Boeing 757232
Aircraft serial: 25142
Aircraft time: 38,397 hours, 18,644 cycles
Engine: Pwa PW2037
Engine time: 10,897 hours, 5,089 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Valve
Condition: Malfunctioned
Location: Nr 1 Engine
Part time: 10,897 hours, 5,089 cycles
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

AT FLT 350-370 LT ENG FLUCTUATED EPR 1.11-1.24, EGT 438-460 AND N1 79.1-82.2. DUCT PRESS FLUX 30-60 PSI. MCC REQUESTED TURN OFF LT BLEED AND FLUX STOPPED. DIVERTED TO MCO DUE TO EN ROUTE WX. PERF PFHB TEST 06 AND 13, NO ANOMALIES NOTED. REPLACED HIGH STAGE PILOT VALVE PER FIM 36-11-08. PERF HS PILOT TEST PER AMM 36-11-08 715 085. OPER CKS NORMAL. LEAK CKS GOOD.