SDR UIEA0017

Service difficulty report · Skin · Boeing 747243B

Difficulty date: March 17, 2000
Submitted: May 31, 2000
Operation: Air carrier
Aircraft: N516MC
Make and model: Boeing 747243B
Aircraft serial: 22507
System (JASC): 5414 · Nacelle/Pylon, Plate/Skin
Part: Skin
Condition: Damaged
Location: Nr 1, 2, 3 Pylon
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

DURING INTERNAL INSPECTION OF PYLON NR 1, NR 2, NR 3 STRUCTURE SURROUNDING THE PRECOOLER EXHAUST EXIT AREA FOUND METAL DISCOLORED AND EXTERNAL SKIN CREASED. OVER TEMPERATURE ANALYSIS INDICATED TEMPER LOSS AND HEAT RELATED DAMAGE. AFFECTED STRUCTURE AND SKIN SECTIONS REPLACED PER SB 747-54A2158 REV 2; 747-54-2163 REV 1. PYLON STRUT MOD EMBODIED. (M)