SDR IPXA2015071991273

Service difficulty report · Warning Message · Doug MD11F

Difficulty date: July 18, 2015
Submitted: July 20, 2015
Operation: Air carrier
Aircraft: N294UP
Make and model: Doug MD11F
Aircraft serial: 48472
Aircraft time: 77,986 hours, 12,755 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Warning Message
Condition: False Activation
Stage of operation: CR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

CRUISING AT FL290 WITH ALL ANTI-ICE ON, LEVEL 1 AIR SYS 2 OFF ILLUMINATED FOLLOWED BY TAIL ANTI ICE DISAGREE. DECAY CHECKED OK, AS 19.5 IAW AMM 36-00-01-700-802, FOUND NO HISSING SOUND, ALL SENSORS AND WIRES SECURED THEN R & R MFDC PRECAUTIONARY, THEN AIR SYS 2 OPS TEST OK IAW AMM 71-00-00.

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