SDR IPXA2017092522021

Service difficulty report · Warning Message · Doug MD11F

Difficulty date: September 24, 2017
Submitted: October 4, 2017
Operation: Air carrier
Aircraft: N295UP
Make and model: Doug MD11F
Aircraft serial: 48475
Aircraft time: 81,683 hours, 13,229 cycles
System (JASC): 3610 · Pneumatic Distribution System
Part: Warning Message
Condition: False Activation
Location: Anti Ice Sys
Stage of operation: CR
How discovered: O
Nature of condition: J
Precautionary procedure: J, A

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

What was found

WITH ALL ANTI-ICE SYSTEMS ON IN ICING CONDITIONS, RECEIVED A LEVEL 1 BLEED AIR 2 OFF AND LEVEL 1 PACK 2 OFF. SHORTLY, A LEVEL 2 BLEED AIR 1 FAULT. OUTFLOW VALVE FULLY CLOSED. LEVEL 2 EXTINGUSHED WITH THROTTLE NR 1 ADVANCED TO MCT. COMPLIED WITH A FUNCTIONAL AND LEAK TEST OF THE NR 1 HSV IAW MM 36-11-03-700-801, NO FAULTS FOUND.

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