Service difficulty report · Unknown · Boeing 76734AF

Difficulty date
April 18, 2023
Submitted
April 19, 2023
Operation
Air carrier
Aircraft
N337UP
Make and model
Boeing 76734AF
Aircraft serial
37858
Aircraft time
33,037 hours, 11,775 cycles
Part
Unknown
Part number
NA
Part serial
NA
Condition
Vibration
Stage of operation
CL
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

*SUPPLEMENTAL SDR* *ATB* DURING CLIMB WITH THRUST AT N1 106.0 LEFT AND RIGHT VIBRATION FELT THRU AIRFRAME. VIB INDICATION PEAKED AT LEFT 2.8 FAN / RIGHT 2.5 FAN. MOST PRONOUNCED INITIATING CLIMB THRUST FROM 2 INTERMEDIATE VIBRATION WITHIN LIMITS PER PARA H VIBRATION GUIDELINES. ALSO ACCOMPLISHED AIRFRAME VIBRATION CONDITIONAL INSP PER AMM 05-51-38-202-001, NO FAULTS NOTED. A\C OK FOR SERVICE

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