SDR SCNA20250609202

Service difficulty report · Clamp · Boeing 7378

Difficulty date: June 8, 2025
Submitted: June 9, 2025
Operation: Air carrier
Aircraft: N841SY
Make and model: Boeing 7378
Aircraft serial: 40865
Aircraft time: 41,693 hours, 19,495 cycles
System (JASC): 3400 · Navigation System
Part: Clamp
Condition: Unsecure
Location: Zone 200
Stage of operation: IN
How discovered: O
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

WORK ORDER 88477, NR00094: DURING GROSS INT. HYD. SYS. LEAKAGE CHECK, WHEN PLACING AMP.-CLAMP IN EMDP RELAY (P92), IT CREATED AN ELECTRIC ARC AND FLAMED THE COATING OF THE CABLES. CABLES IN P92 WERE REPAIRED PER B737-800 SWPM 20-10-13 AND EMDP TEST WAS PERFORMED PER B737-800 AMM 29-11-21 SATISFACTORY TEST.

More about the Boeing 737-8