SDR DALA2017122008845

Service difficulty report · Electrical Sys · Doug MD9030

Difficulty date: December 19, 2017
Submitted: December 25, 2017
Operation: Air carrier
Aircraft: N935DN
Make and model: Doug MD9030
Aircraft serial: 53460
Aircraft time: 44,371 hours, 27,911 cycles
System (JASC): 2450 · AC Power Distribution System
Part: Electrical Sys
Condition: Failed
Stage of operation: NR
How discovered: 9
Nature of condition: H
Precautionary procedure: O

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

What was found

EXPERIENCED A TOTAL LOSS OF ELECTRICAL POWER WHILE BEING VECTORED FOR APPROACH. MAINTENANCE TROUBLESHOT AND FOUND OHMS FROM GENERATOR TO CEU T-1 270 M OHMS, T-2 157 M OHMS AND T-3 OL. REMOVED AND REPLACED RIGHT COTA AND CEU IAW MM. REMOVED AND REPLACED EPCU, LEFT CEU, COTA AND HARNESS. OPERATION CHECKS GOOD.

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