Service difficulty report · Autothrottle Sys · Boeing 767322

Difficulty date
January 5, 2022
Submitted
January 5, 2022
Operation
Air carrier
Aircraft
N649UA
Make and model
Boeing 767322
Aircraft serial
25286
Aircraft time
117,203 hours, 18,197 cycles
Part
Autothrottle Sys
Part number
NA
Part serial
NA
Condition
Failed
Stage of operation
TO
How discovered
O
Nature of condition
O
Precautionary procedure
C

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

What was found

AUTO THROTTLES FAILED TO ENGAGE ON TAKEOFF THRUST MANAGEMENT SYS (INCLUDING A/T SYS) PLACED ON MEL. MEL STICKER AND C/B COLLARED F16 ON THE P11. DOWNGRADED A/C TO "AUTOLAND LIMIT-LAND 2". DISPATCH DESK: 82 NAME: JERRY DATE: 02-JAN-22- NOC DESK: 76 NAME: DOUG DATE: 02-JAN-22- OK TO DEFER AUTOTHROTTLE SERVO INOP T/S REF. B767-3 FIM 22-03-00 MCDP AUTO FLIGHT BITE. NO FLT. IAW AMM 22-03-00-818, ALL TESTS PASSED. ACFT. UPGRADED TO FULL FAULTS DISPLAYED. PERFORMED MCDP TESTS 02, 10, & 12 IAW FIM CAT CAPABILITY. " AUTO LAND CAT II" PLACARD REMOVED FROM FLIGHT 22-03-00-803, 810, & 812. AUTO THROTTLE SERVOS & DISCONNECT OPS DECK. CHECK NORMAL. UNABLE TO DUPLICATE FAULT. ACCOMP. MCDP TEST 30 ADD EMP:U107527