SDR UIEA2017072201268

Service difficulty report · Valve · Boeing 76731B

Difficulty date: July 31, 2017
Submitted: July 31, 2017
Operation: Air carrier
Aircraft: N1361A
Make and model: Boeing 76731B
Aircraft serial: 26265
Aircraft time: 85,453 hours, 18,001 cycles
System (JASC): 2120 · Air Distribution System
Part: Valve
Part number: 3209953
Condition: Failed
Location: Equip Cooling
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

EICAS SHOWS A FWD EQUIPMENT COOL VALVE MESSAGE AND P5 EQUIPMENT COOLING PANEL SHOWS VALUE LIGHT WHEN AIRCRAFT IN AIR MODE. FOUND GROUND EQUIPMENT COOLING EXHAUST VALUE INTERNAL POSITION CIRCUIT NO GOOD. EQUIPMENT COOLING OVERBOARD EXHAUST VALUE REMOVED & REPLACED IAW AMM 21-58-05, REV 121 & TESTED IAW AMM 21-58-05, REV 121, FOUND SATISFACTORY.

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