SDR IPXA2020071057609

Service difficulty report · Nose Cone · Boeing 75724APF

Difficulty date: July 10, 2020
Submitted: July 10, 2020
Operation: Air carrier
Aircraft: N459UP
Make and model: Boeing 75724APF
Aircraft serial: 25480
Aircraft time: 29,817 hours, 18,472 cycles
Engine: Pwa PW2040
System (JASC): 7200 · Engine (Turbine/Turboprop)
Part: Nose Cone
Condition: Cracked
Location: Left Engine
Stage of operation: CR
How discovered: O
Nature of condition: E
Precautionary procedure: O

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

What was found

EMERGENCY DECLARED, DIVERTED, ENGINE VIBRATION IN THE AMBER BAND 5.0 RAN CHECKLIST,. UNABLE TO REDUCE VIBRATIONS. CHECKLIST INSTRUCTS TO SHUT ENGINE DOWN LEFT ENGINE.FOUND TWO CRACKS ON LEADING EDGE OF LEFT NOSE CONE FAIRING. REMOVED AND REPLACED LEFT NOSE CONE FAIRING. ACCOMPLISHED TEST NR 6 VIBRATION SURVEY TEST. VIB TEST GOOD IAW AMM 71-00-00 AND AMM 72-35-01

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