Service difficulty report · Hmu · Boeing 7377H4

Difficulty date
January 20, 2018
Submitted
January 22, 2018
Operation
Air carrier
Aircraft
N432WN
Make and model
Boeing 7377H4
Aircraft serial
33715
Aircraft time
52,267 hours, 30,562 cycles
Part
Hmu
Part number
442317
Condition
Defective
Location
Nr 1 Engine
Stage of operation
CL
How discovered
O
Nature of condition
R
Precautionary procedure
A

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

What was found

AIR TURNBACK, DURING CLIMB OUT THE NR 1 ENGINE WOULD NOT PRODUCE MORE THAN 86.9% N1 THRUST. R&R HYDRO MECHANICAL UNIT PER MT.

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