SDR SWAA2016071853893

Service difficulty report · Shutoff Valve · Boeing 7377H4

Difficulty date: July 15, 2016
Submitted: July 19, 2016
Operation: Air carrier
Aircraft: N766SW
Make and model: Boeing 7377H4
Aircraft serial: 29806
Aircraft time: 57,977 hours, 33,847 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Shutoff Valve
Part number: 32145526
Part serial: 8139
Condition: Faulty
Location: Nr 2 Engine
Stage of operation: DE
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

DECLARED EMERGENCY LOSS OF PRESSURIZATION AT FL300 DESCENDING TO FL270 MADE EMERGENCY DESCENT TO 10,000 FT. CABIN ALTERNATE NEVER EXCEEDED 10,000 FT, ONLY LIGHT WARNING WAS CABIN ALTERNATE. WARNING HORN ALONG WITH CABIN ALTERNATE LIGHT. R & R NR 2 ENGINE PRESSURE REGULATOR SHUTOFF VALVE IAW AMM.

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