SDR ASAA2023092145264

Service difficulty report · Pressure Valve · Boeing 7379

Difficulty date: September 21, 2023
Submitted: September 25, 2023
Operation: Air carrier
Aircraft: N920AK
Make and model: Boeing 7379
Aircraft serial: 44086
Aircraft time: 7,450 hours, 2,212 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Pressure Valve
Part number: 632920682
Part serial: 2264
Condition: Damaged
Location: #1 Engine
Part time: 7,450 hours, 2,212 cycles
Stage of operation: IN
How discovered: V
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

WHILE T/S LP 60683921, FOUND HPSOV CONTACTING R/H T/R BLANKET. GROUNDED - YES. REMOVED THE #1 ENG HPSOV, REF AMM 36-11-07-000-801. J RAMIREZ 48859 09/21/2023. INSTALLED THE #1 ENG HPSOV, REF AMM 36-11-07-400-801 UP TO STEP H(1). OPS CHECK AND LEAK CHECK STILL REQUIRED J RAMIREZ 48859 09/21/2023. OPS CHECK AND LEAK CHECK GOOD IAW AMM 36-11-07-400-80 H(3),(4)(5).

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