SDR UPS97222377

Service difficulty report · Shut Off Valve · Boeing 72722C

Difficulty date: March 14, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N942UP
Make and model: Boeing 72722C
Aircraft serial: 19101
System (JASC): 2150 · Cabin Cooling System
Part: Shut Off Valve
Condition: Failed
Location: Lt Pack
Stage of operation: NR
Nature of condition: B
Precautionary procedure: O

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

What was found

INSPECTION TYPE-N/A, SMOKE IN FLIGHT DECK. FOUND LEFT PACK SOV, FAILED OPEN AND PACK COOLING FAN CB PULLED DUE TO DI 126385. REMOVED AND REPLACED LEFT PACK SOV PER MM 21-51-61. REMOVED AND REPLACED LEFT ACM PER MM 21-51-11, PRECAUTIONARY. INSPECTED SYSTEM AS REQUIRED NO DEFECTS NOTED. OPS CHECK, LEAK CHECK NORMAL SOV P/N ON 398540-2-1, OFF 321674-41, SN ON P2343.

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