SDR FDEA201301030011

Service difficulty report · Relay · Doug MD1010F

Difficulty date: January 3, 2013
Submitted: January 3, 2013
Operation: Air carrier
Aircraft: N392FE
Make and model: Doug MD1010F
Aircraft serial: 46626
Aircraft time: 82,949 hours, 31,807 cycles
System (JASC): 3620 · Pneumatic Indicating System
Part: Relay
Part number: TD1239
Condition: Failed
Location: Manifold Delay
Stage of operation: DE
How discovered: O
Nature of condition: J
Precautionary procedure: B

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

What was found

AIR MANIFOLD NR 3 FAILED LEVEL 3 ALERT WHEN ANTI-ICE SELECTED ON, DURING DESCENT. PERFORMED A GVI OF PNUEMATIC DUCTS AND VALVES IN WING AND PYLON AREA. PERFORMED PNEUMATIC DECAY TEST IAW AMM 36-00-01-5 WITH NO FAULTS. DURING SYS TESTS USING APU, FOUND THE MANIFOLD DELAY RELAY BAD, REPLACED RELAY AND SYS OPS CHECKED GOOD.

More about the Doug MD-10-10F