SDR 2003F00421

Service difficulty report · Duct · Boeing 727222

Difficulty date: March 13, 2003
Submitted: July 11, 2003
Operation: Air carrier
Aircraft: N7640U
Make and model: Boeing 727222
Aircraft serial: 19913
System (JASC): 2120 · Air Distribution System
Part: Duct
Condition: Cracked
Location: Fs
Stage of operation: IN
How discovered: 9
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

AT C-CHECK, FOUND CRACK ON HEATING AND AIR CONDITIONING DUCT AT BS 720E/D, STRINGER 12/13. STOP DRILLED CRACKS. FABRICATED DOUBLER. ALODINED, PRIMED AND INSTALLED DOUBLER AT FUSELAGE HEATING AND AIR CONDITIONING DUCT, RIGHT SIDE OF CABIN, BETWEEN STATION 720E AND 720D, AND STRINGER 12 AND 13. (M)