Service difficulty report · Hydromech Unit · Boeing 737823

Difficulty date
April 30, 2020
Submitted
May 4, 2020
Operation
Air carrier
Aircraft
N981NN
Make and model
Boeing 737823
Aircraft serial
31230
Aircraft time
14,596 hours, 5,867 cycles
Engine
Cfmint CFM567B242
Part
Hydromech Unit
Part number
1853M56P16
Part serial
BECWD438
Condition
Unserviceable
Location
Nr 2 Engine
Part time
14,594 hours, 5,867 cycles
Stage of operation
TO
How discovered
O
Nature of condition
R
Precautionary procedure
C

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

What was found

AIRCRAFT WAS GROUNDED. FLIGHT ABORTED TWO TAKE OFFS AT LOW SPEED ACCOUNT THE NUMBER TWO ENGINE WAS UNABLE TO ACHIEVE MAX THRUST. REMOVED AND REPLACED #2 ENGINE HYDROMECHANICAL UNIT AND FUEL PUMP PER WORK CARD 73-94-12 AND AMM 73-11-01. OPS AND LEAK CHECKS GOOD. SEE ALSO SDR AALA202005049010 FOR ADDITIONAL PARTS.