SDR VGQY2010062300039

Service difficulty report · Web · Boeing 747243B

Difficulty date: June 23, 2010
Submitted: July 8, 2010
Operation: Air carrier
Filed by: VGQY082L
St Engineering Aerospace Services Company Pte. Ltd
Aircraft: N820SA
Make and model: Boeing 747243B
Aircraft serial: 23476
Aircraft time: 84,534 hours, 13,992 cycles
System (JASC): 5514 · Horizontal Stabilizer Miscellaneous Structure
Part: Web
Part number: 65B03542059
Condition: Cracked
Location: Zone 300
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 HORZ STAB AT STAB BL 421.50, RIB WEB AFT END FOUND CRACK AT FASTENER HOLE (CRACK LENGTH APPROX = 0.575 INCH). NO SRM REPAIR. REMOVED CRACKED WEB PER SRM 51-30-02, REV 116. WEB TRIMMED OFF, WEB AND SPLICE FABRICATED 7075-T6 AL CLAD SHEET AND INSTALLED. COMPLIED WITH EN 1091-10, REPAIR FOR LT HORIZONTAL STABILIZER TIP STAB BL 421.50 INSTALLED WEB 65B035420-59 CRACK.