SDR ASMF201503007

Service difficulty report · Blade · Boeing 737752

Difficulty date: January 24, 2015
Submitted: March 4, 2015
Operation: Air carrier
Aircraft: N904AM
Make and model: Boeing 737752
Aircraft serial: 28262
Aircraft time: 35,127 hours, 18,672 cycles
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Blade
Part number: 3400010260
Part serial: DC467113T
Condition: Vibration
Location: Lt Engine
Part time: 43,849 hours, 15,498 cycles
Stage of operation: CL
How discovered: O
Nature of condition: E
Precautionary procedure: K

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

What was found

DURING CLIMB, THE LT ENG VIBRATION REACHED 3.8 UNITS. PERFORMED A BORESCOPE INSPECTIONS IAW AMM 72-00-00-200-808-F00, AMM 72-00-28-00-200-808-F00, AMM 72-00-00-200-804-F00, AMM 72-00-00-200-807-F00, TRIM BALANCE IAW AMM 71-00-00, TASK 71-00-00-750-803-F00, PLATFORMS WERE EXAMINED IAW AMM 72-21-02-200-801-F00. REPLACE & LUBRICATION OF THE FAN ROTOR BLADE OF THE LT ENG IAW AMM 72-21-02, VIBRATION SURVEY TEST NR 7 WAS PERFORMED IAW AMM 72-00-00, BEING WITHIN LIMITS.