SDR P5CA0200689

Service difficulty report · Shroud · Boeing 747249F

Difficulty date: June 29, 2002
Submitted: July 3, 2002
Operation: Air carrier
Aircraft: N806FT
Make and model: Boeing 747249F
Aircraft serial: 21827
Aircraft time: 65,978 hours, 16,966 cycles
Engine: Pwa JT9D7Q
Engine time: 53,124 hours, 13,452 cycles
System (JASC): 7520 · Engine Cooling System
Part: Shroud
Condition: Cracked
Location: Nr 1 Engine
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

CRACKS FOUND ON NR 1 ENG TURBINE COOLING SHROUD AT 8 & 2 O'CLOCK POSITIONS. RT (2 CRACKS) NR 1 IS 5 INCHES LONG & NR 2 IS 2 INCHES LONG. LT (4 CRACKS) NR 1 IS 3 INCHES LONG, NR 2 IS 5 INCHES LONG, NR 3 IS 1.5 INCH LONG & NR 4 IS 1.5 INCH LONG. ALSO BRACKET HAS A 1 INCH LONG CRACK. NR 1 ENG TCC MANIFOLD WELD REPAIRED IAW P&W STD PRACTICES 70-42-01 USING AMS 5832 FOR INCONEL.