SDR ASAA2023110746076

Service difficulty report · Modulating Valve · Boeing 7379

Difficulty date: November 7, 2023
Submitted: November 9, 2023
Operation: Air carrier
Aircraft: N913AK
Make and model: Boeing 7379
Aircraft serial: 44079
Aircraft time: 9,518 hours, 2,954 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Modulating Valve
Part number: 632920703
Part serial: 2824
Condition: Faulty
Location: #2 Engine
Part time: 6,086 hours, 1,783 cycles
Stage of operation: NR
How discovered: V
Nature of condition: J
Precautionary procedure: K

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

What was found

MAINT LIGHT ILLUMINATED. STATUS BLEED FAMV R. GROUNDED - YES. OPENED #2 FANCOWLS, T/R. REF. CHAPTER 5-07-01 PG3, TABLE 3, ITEM 7. REPLACED RIGHT FAN AIR MODULATING VALVE, LRU/LEAK CHECKS OK. REF. MM 36-12-03-400-801. CONFIRMED MAINT. LIGHT IS OFF. ALT. DEACTIVATION REVERSED. CLOSED #2 FAN COWLS, T/R. CONFIRMED LATCHED.

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