SDR MALA000742

Service difficulty report · A/C Pack · Bac AVRO146RJ85A

Difficulty date: December 6, 2000
Submitted: December 18, 2000
Operation: Air carrier
Aircraft: N524XJ
Make and model: Bac AVRO146RJ85A
Aircraft serial: E2349
System (JASC): 2120 · Air Distribution System
Part: A/C Pack
Condition: Malfunctioned
Location: A/C Bay
Stage of operation: NR
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

ISOLATION VALVE FAILED WHEN SELECTING TO ENGINE AIR. UNABLE TO PRESSURIZE. RETURNED DO TO WEATHER. MAINTENANCE FOUND LEAK ON PACK 1. DEFERED PACK 1 PER MEL 21-50-1 CLASS B. ENTERED IN DMR, MTX NOTIFIED. MAINTENANCE FOUND LEAK ON PACK ONE. RAN WITH PACK 2 ONLY RECIRCULATION AND FRESH AND ALL IS NORMAL. REMOVED FORM DMR. MAINTENANCE RESECURED DUCTING AT NRV MAIN DUCT. NO L EAKS NOTED PACK 1 OPS GOOD WITH ENGINE AIR.