SDR MEX2003050

Service difficulty report · Relay · Doug MD88

Difficulty date: March 1, 2003
Submitted: March 26, 2003
Operation: Air carrier
Aircraft: N160PL
Make and model: Doug MD88
Aircraft serial: 49763
Engine: Pwa JT8D*
System (JASC): 2497 · Electrical Power System Wiring
Part: Relay
Condition: Damaged
Location: Dc System
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

CAPTAIN REPORTED DC BUS OFF LIGHT TURN ON. FAIL WAS CAUSED BY A TEMPORARY ELECTRICITY FAILURE IN JET WAY. DURING CHECK, WAS DETECTED THE RELAY R2-21 DAMAGED. AFTER RELAY WAS COOLED DOWN, THE ELECTRIC SYSTEM WAS RESETED AND WITH APU POWER WAS PERFORMED A TEST AND DC BUS OFF LIGHT TURNED OFF. TEST WAS PERFORMED IAW MM, ALL CORRECT.

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