Service difficulty report · Extinguisher · Boeing 7377H4

Difficulty date
July 14, 2023
Submitted
July 18, 2023
Operation
Air carrier
Aircraft
N280WN
Make and model
Boeing 7377H4
Aircraft serial
32533
Aircraft time
52,919 hours, 31,887 cycles
Part
Extinguisher
Part number
UNKNOWN
Condition
Discharged
Location
Zn 100 Fus Lower
Stage of operation
CR
How discovered
9
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

APU BOTTLE DISCHARGE LIGHT ILLUMINATED<[01] T/S PER FIM 26-20 TASK 802. FOUND APU BOTTLE DISCHARGED. R/R APU FIRE EXTINGUISHING BOTTLE IAW AMM 26-21-01. APU BOTTLE DISCHARGE LIGHT REMAIN ILLUMINATED AND APU FIRE BOTTLE EXTINGUISHED. (REFER TO DISCP TTG8Q00M85X9 FOR CORRECTIVE ACTION.) R/R ENGINE AND APU FIRE CONTROL PANEL / P8-1 IAW AMM 26-00-01. DURING OPS CHECK FOUND 28V AT CONNECTORS D1176 PIN 2 AND D594 PIN 3. R/R WHEEL WELL APU REMOTE CONTROL PANEL / P28 IAW AMM26-22-03 AND FOUND ELECTRICAL CONNECTOR DAMAGED. PART ORDERD.;[02] UPDATE REFERENCE AMM 26-22-01;[03] CERTIFY;[04] R & R CONNECTOR D48080P VERIFIED ALL REQUIRED OPS CHECKS FOR CONNECTOR D48080P IAW WDM 26-21-11; HOOKUP LIST FOR D48080P; AND SWDM 20-61-11;[05] T/S PER FIM 26-20 TASK 802. FOUND APU BOTTLE DISCHARGED. REF DISCP TTG8Q00M7W9 FOR FULL SIGN OFF. PERFORMED OPS C.KS FOR APU CONTROL PANEL INS PER AMM 26-22-03. PERFORMED OPS C.KS FOR ENG AND APU FIRE CONTROL PANEL INS PER AMM 26-00-01 ALL OPS C.KS GOOD.

More about the Boeing 737-7H4