SDR RRXA991418

Service difficulty report · Plenum · Doug DC873F

Difficulty date: June 24, 1999
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N604AL
Make and model: Doug DC873F
Aircraft serial: 46047
System (JASC): 2150 · Cabin Cooling System
Part: Plenum
Condition: Cracked
Location: Air Dist
Stage of operation: IN
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

DURING A MAINTENANCE VISIT, FOUND RT FWD PLENUM ASSY PRIMARY HEAT EXCHANGER HAS SEVERAL CRACKS. DAMAGE EXCEEDED LIMITS IAW DC-8 SRM. REMOVED DAMAGED, TREATED AREA IAW DC-8 SRM 51-1-8. STOPPED DRILLED CRACKS, WELDED IAW FAA APPROVED TENNESSEE TECHNICAL SERVICES DER ENGINEERING SKETCH NR EO-99-094 WITH APPROVED 8110-3 DATED JUNE 24, 1999.

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