Service difficulty report · Relay · Boeing 7379

Difficulty date
June 20, 2023
Submitted
June 22, 2023
Operation
Air carrier
Aircraft
N37535
Make and model
Boeing 7379
Aircraft serial
66605
Aircraft time
3,237 hours, 1,075 cycles
Part
Relay
Part number
TDH18531002
Condition
Inoperative
Location
J23 Junction Box
Stage of operation
TO
How discovered
O
Nature of condition
B, J, O
Precautionary procedure
A

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

What was found

THIS ITEM IS A LEVEL 1 CHRONIC FOR THE EQUIPT SMOKE DETECT LIGHT COMING ON. NOTE: BOTH THE SUPPLY AND EXHAUST DETECTORS HAVE BEEN REPLACED. TECH SUPPORT UPDATE, PLEASE REPLACE R1184, R1183 AND R1150. REF WDM 21-25-11/26-19-11. SINCE ALL IN J23 JUNCTION BOX. THANKS PER FUP, REF AMM 26-19-00-710-801 . IFIM 21-27-00-810-805 . PARTS USED: 42-2619-3-0001,QTY :1 00-0363-3-0181,QTY :1 CARRIED BY ELB REPLACED RELAYS R1150 & R1184 WITH NEW. NEED RELAY R1183 P# TDH1853-1002 (NIS AT UNITED)TO BE INSTALLED THEN OPS CHECK DONE REMOVED AND REPLACED RELAY R1183 PER WDM 26-19-11-1. REMOVED AND GOOD. REPLACED SUPPLY AND EXHAUST SMOKE DETECTORS PER AMM 26-19-01, 26-19-02. INSPECTED WIRING AND UPPLY TUBES. NO DEFECTS OR BLOCKAGE FOUND. PERFORMED OPS CHECK PER AMM 26-19-00. OPS CHECK

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