SDR IPXA2017041216081

Service difficulty report · Chain · Doug MD11F

Difficulty date: April 10, 2017
Submitted: April 12, 2017
Operation: Air carrier
Aircraft: N294UP
Make and model: Doug MD11F
Aircraft serial: 48472
Aircraft time: 81,815 hours, 13,740 cycles
System (JASC): 5210 · Passenger/Crew Doors
Part: Chain
Part number: SX657932
Condition: Broken
Location: L1 Door
Stage of operation: IN
How discovered: C
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

INSPECTION TYPE:3C, DURING OPERATIONAL CHECK/TEST OF THE L-1 DOOR ESCAPE SLIDE/RAFT DEPLOYMENT, THE DOOR FAILED TO OPEN. FOUND AIR MOTOR DRIVE CHAIN BROKEN. REMOVED AND REPLACED DRIVE CHAIN ON POWER DRIVE MECHANISM PER AMM 52-11-02-830-801, OPERATIONAL CHECK OF SLIDE/RAFT DEPLOYMENT IS NOW GOOD. (MINOR)

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