Service difficulty report · Unknown · Boeing 7474KZF

Difficulty date
April 2, 2023
Submitted
April 4, 2023
Operation
Air carrier
Aircraft
N406KZ
Make and model
Boeing 7474KZF
Aircraft serial
36133
Aircraft time
52,181 hours, 10,048 cycles
Part
Unknown
Condition
Unknown
Location
Unknown
Stage of operation
CL
How discovered
O
Nature of condition
O
Precautionary procedure
A

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

What was found

ENGINE #1 INDICATED HIGH VIBE OF 4.9 CLIMBING THROUGH 15,000' UP TO FL 240.(<P>ACCOMPLISHED FIM TASK ON 71-00 FIGURE 118 STEPS 1 &2, NO DEFECTS FOUND. INSTALLED ACCELEROMETER IAW 77-31-01. PENDING OPS CHECK. ACCOMPLISHED VIBRATION SURVEY PER AMM 71-00-00.</P> / <P>FAN BLADE LUBE ACCOMPLISHED ON ENGINE #1 PER AMM 72-31-02 REV. 107. PER PPE, REMAPPED FAN BLADES. ALL MOMENT WEIGHTS ON SPINNER CONFIRMED TO P07 OR P014 BY REPLACING 2 EA WEIGHTS.</P> / <P>PERFORMED ENGINE #1 FAN TRIM BALANCE PER AMM 72-31-00. VIBRATION SURVEY CHECKED NORMAL 0.02 MPA.</P> / <P>RETORQUED ENGINE #1 SPINNER PER AMM 72-31-01.</P> / <P>REACTIVATED ENGINE #1 NORMAL ACCELEROMETER PER AMM 77-31-01.</P>)

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