SDR ASAA2013060795012

Service difficulty report · Retainer · Boeing 737490

Difficulty date: June 7, 2013
Submitted: June 11, 2013
Operation: Air carrier
Aircraft: N703AS
Make and model: Boeing 737490
Aircraft serial: 28893
Aircraft time: 47,650 hours, 26,708 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Retainer
Part number: 65C3379710
Condition: Corroded
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

LEFT NR 3 UPPER BLADE SEAL RETAINER IS CORRODED ON BOTTOM SIDE. ACFT GROUNDED. REMOVED CORROSION ON LT NR 3 UPPER BLADE SEAL RETAINER. MATERIAL LOSS FOUND TO BE OUT OF LIMITS. LOCATED AND DRILLED NEW RETAINER IAW SRM 53-60-71-1A-1, FIG 101 AND 51-40-5. NEW RETAINER TO BE INSTALLED ON ASA T/C 400 53FCD 10237 1, W 1.5, O .063, R .056, L 2.0, D .007.