What was found
UPON 100-HOUR INSPECTION, FOUND WING SURFACE DISTORTED, SKINS CREASED ON LOWER SURFACE WS 93.00 AT MAIN SPAR. REMOVAL OF SKIN REVEALED LOWER SPAR CAP BENT, SPAR WEB CREASED AND RIBS DAMAGED. CAUSE UNKNOWN. SPAR CAP TOO WEAK AT JACK POINTS.