Service difficulty report · Coupler · Boeing 747422

Difficulty date
September 22, 2013
Submitted
September 27, 2013
Operation
Air carrier
Aircraft
N116UA
Make and model
Boeing 747422
Aircraft serial
26908
Aircraft time
59,802 hours, 6,891 cycles
Engine
Pwa PW4056
Part
Coupler
Condition
Failed
Location
Hf Comm
Stage of operation
IN
How discovered
O
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

CAPTAIN GETTING RADIO BLEED OVER ON RCP 1FLT INTERPHONE. LT HF INOPERATIVE. COMPLIED WITH MEL REQUIREMENTS. REPLACED CAP AUDIO SELECT PANEL, NO HELP. RPLD AMU REF AMM 23-51-04 -401. NEED OP CK WHEN PLANE IS OUT OF HANGER FOR VHF L AND R PER AMM TASK 23-51-00-705-001. (MR23546 OFF-37 ON-47). MEL REF: 2311F. FAILED HF COUPLER. WOULD NOT CONNECT. (PARTS: 530-9045 MR23168).