Service difficulty report · Valve · Boeing 7377H4

Difficulty date
April 7, 2023
Submitted
April 10, 2023
Operation
Air carrier
Aircraft
N780SW
Make and model
Boeing 7377H4
Aircraft serial
27885
Aircraft time
72,867 hours, 43,377 cycles
Part
Valve
Condition
Smoke
Location
Zn 400 Nacelle/P
Stage of operation
CL
How discovered
9
Nature of condition
B, O
Precautionary procedure
D

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

What was found

ON TAKEOFF CLIMB OUT APPROXIMATELY 800 AGL FA REPORTS SMOKE & ODOR IN CABIN. ENGINES WERE THE BLEEDS SOURCE<[01] PERFORMED FIM 29-10 TASK 807. FOUND LGTV TRANSFERRING B SYSTEM TO A THEN OVERBOARD. REMOVED AND REPLACED LANDING GEAR TRANSFER VALVE PER AMM 32-31-71. REMOVED AND REPLACED RESERVOIR MANUAL FILL PUMP PER AMM 29-18-01. RAN PACKS WITH ENGINE AIR FOR 10 MINUTES. NO SMELL NOTED PER AMM 71-00-00. PERFORMED FIM 21-00 TASK 806. REMOVED AND REPLACED WATER SEPARATOR COALESCED BAGS PER AMM 21-51-05. NO OTHER FAULTS FOUND.

More about the Boeing 737-7H4