Service difficulty report · Hmu · Boeing 7377H4

Difficulty date
July 27, 2014
Submitted
July 29, 2014
Operation
Air carrier
Aircraft
N428WN
Make and model
Boeing 7377H4
Aircraft serial
29844
Aircraft time
42,523 hours, 24,748 cycles
Engine
Cfmint CFM567B22
Part
Hmu
Part number
442369
Part serial
BECW0597
Condition
Faulty
Location
Nr 2 Engine
Stage of operation
UK
How discovered
O
Nature of condition
J
Precautionary procedure
E, A

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

What was found

AIR TURN BACK, INFLIGHT SHUTDOWN & DECLARED EMER. NR 2 ENG N1 FLUX +/- 10% & THEN SPIKE TO 102%, THROTTLE UNRESPONSIVE. R & R HYD MECHANICAL UNIT IAW MM.

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