Service difficulty report · Vor System · Doug MD88

Difficulty date
April 9, 2007
Submitted
April 13, 2007
Operation
Air carrier
Aircraft
N158PL
Make and model
Doug MD88
Aircraft serial
49761
Aircraft time
50,934 hours, 34,761 cycles
Engine
Pwa JT8D219
Part
Vor System
Part number
6223257101
Part serial
9054
Condition
Failed
Location
Nr 2
Part time
9,063 hours, 5,823 cycles
Stage of operation
IN
How discovered
9
Nature of condition
J
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK, THE VOR NR 2 FLAG WAS SHOWN ON BOTH PFD'S, RADIO ALTIMETER NR 1 AND EFIS PANEL TEST FAILED IN BOTH SIDES. TECH PERSONNEL REPLACED VHF NAV NR 2 AND RADIO ALTIMETER NR 1 IAW MM 34-32-02 AND 34-42-03 RESPECTIVELY, TESTED CORRECT. BOTH EFIS SYSTEM SIDES WERE CHECKED, DETECTING FAILURE OF RELAY R2-124, SO IT WAS REPLACED IAW MM 32-36-00 TESTED CORRECT IAW MM 34-42-00.

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