SDR PCSA2009111501

Service difficulty report · Modulating Valve · Boeing 7272F9

Difficulty date: November 14, 2009
Submitted: November 17, 2009
Operation: Air carrier
Aircraft: N199AJ
Make and model: Boeing 7272F9
Aircraft serial: 21426
Aircraft time: 65,186 hours, 44,855 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Modulating Valve
Part number: 39271611
Part serial: P2614
Condition: Leaking
Location: Bleed Air Sys
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 CLIMBOUT PASSING 28000 FEET ENGINE 1 ENG STRUT OVERHEAT ILLUMINATED. ACCOMPLISHED ABNORMAL PROCEDURE, NO FURTHER OCCURRENCE. MAINTENANCE FOUND ENGINE 1 HIGH PRESSURE MODULATING VALVE LEAKING, REPLACED THE VALVE IAW THE B727 AMM, PERFORMED A LEAK CHECK AT POWER FOUND NORMAL.

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