SDR UIEA2018031200367

Service difficulty report · Valve · Boeing 76731K

Difficulty date: March 11, 2018
Submitted: March 12, 2018
Operation: Air carrier
Aircraft: N1373A
Make and model: Boeing 76731K
Aircraft serial: 27205
Aircraft time: 96,142 hours, 19,602 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Valve
Part number: 7738556
Part serial: 880120
Condition: Faulted
Location: Lt Engine
Stage of operation: CL
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

DURING CLIMB, AFTER ENGINE ANTI-ICE SELECTED ON, THE LT ENG BLEED OFF, LT PACK OFF, AND LT ENGINE BLEED OVERHEAT EICAS MESSAGES. PERFORMED FIM 36-10 FT 835, FAULTED FAV, REMOVED AND REPLACED THE LT ENGINE FAN AIR MODULATING VALVE IAW AMM 36-11-16. OPS CHECKED GOOD,

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