SDR UIEA2020120102499

Service difficulty report · Wire · Boeing 76731K

Difficulty date: November 29, 2020
Submitted: December 3, 2020
Operation: Air carrier
Aircraft: N1489A
Make and model: Boeing 76731K
Aircraft serial: 27206
Aircraft time: 108,524 hours, 21,585 cycles
System (JASC): 2197 · Air Conditioning System Wiring
Part: Wire
Condition: Unsecure
Location: Equip Valve
Stage of operation: IN
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

FWD EQUIPMENT VALVE EICAS MESSAGE ON PRE-FLIGHT. UPDATED DEFERRAL 138653 TO DDG 21-58-07-02-01. INSTALLED AND SECURED JUMPER WIRES BETWEEN PINS 1 AND 2 AND 5 AND 6, IAW DDG 21-58-07-02-01 PROCEDURE 1, AMM 21-00-00-049-047 AND WDM 21-58-13 UPDATED DMI PLACARD. REMOVED AND REPLACED OVERBOARD EXHUAST VALVE, IAW 21-58-05. OPERATIONS CHECKS GOOD. THIS CLEARS MDDR 138653. DP 1822Z.

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