N834US

MCDONNELL DOUGLAS AIRCRAFT CO MD-88 No injuries Part 121 — USA Jet Airlines, Inc.

Operated by USA JET AIRLINES INC (per NTSB report)

ATA 5311

Part: FRAME — CRACKED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND A CRACK ON THE R/H OUTER FRAME, OUTER FRAME CAP AT F.S. 1380, L22R-L23R. MAINTENANCE IN KYIP REMOVED AND CUT OUT DAMAGE. USA JET MAINTENANCE PERFORMED A HFEC INSPECTION OF THE AREA AND VERIFIED ALL DAMAGE WAS REMOVED. CAS FABRICATED 2 EA. REPAIR ANGLES FROM 7075-T6 0.063”, 1 EA. FILLER FROM 7075-T6 0.090” AND 2 EA. REPAIR STRAPS FROM 7075-T6 0.063”.ALL REPAIR PARTS WERE TREATED , PRIMED AND INSTALLED IAW TD # 0079-CAS-201 IR AND FAA FORM 8110-3 DATED 7/26/2023.

ATA 5330

Part: SKIN — DENTED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND THE SKIN GROUND DOWN AND DENTED BETWEEN L29L-L29R AT F.S. 1338-1363. MAINTENANCE IN KYIP PERFORMED CUTOUT OF DAMAGED AREA, MAINTENANCE PERFORMED A HFEC INSPECTION OF THE AREA AND VERIFIED NO FURTHER DAMAGE EXISTED. C.A.S. MAINTENANCE FABRICATED A REPAIR SKIN FROM A NEW SKIN P/N 5911429-151. REPAIR SKIN SECTION WAS TREATED, PRIMED AND INSTALLED IAW DC9/MD80 SRM 53-01, PARA. 2B

ATA 5300

Part: TEE FITTING — SEVERED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND THE AFT PRESSURE BULKHEAD TEE SEVERED AND BENT BETWEEN F.S. 1334-1338 AT BL 0. . MAINTENANCE IN KYIP REMOVED THE DAMAGED APB TEE AND INSTALLED A NEW TEE IAW SRM 53-03, FIGURE 33.

ATA 5330

Part: SKIN PANEL — DENTED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND THE APB WEB DENTED AND CRACKED, L=20” W=58” DEPTH=0.050” AT F.S 1334-1338. MAINTENANCE IN KYIP PERFORMED THE DAMAGE CUTOUT OF THE APB SKIN, MAINTENANCE PERFORMED A HFEC INSPECTION AND VERIFIED ALL DAMAGE WAS REMOVED. FABRICATED A NEW REPAIR SKIN FROM P/N 5910130-285, REPAIR Y-CHORD FROM P/N 5910130-387, REPAIR SPLICE -5 FROM 2024-T3, REPAIR SPLICE -7 FROM 2024-T3 0.063”, REPAIR PLATE -13 FROM 2024-T3 0.063”AND REPAIR DOUBLER -11 FROM 7075-T6 0.080”. ALL REPAIR PARTS WERE TREATED, PRIMED AND INSTALLED IAW SRM 53-03 PARA. 7 FIG. 33-PAGE 2B AND 53-03 FIGURE 37.

ATA 5100

Part: SKIN PANEL — GOUGED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND A SKIN PANEL IS GROUND DOWN AT F.S. 1381, L23R-L28R. . MAINTENANCE IN KYIP REMOVED AND CUT OUT DAMAGE. USA JET MAINTENANCE PERFORMED A HFEC INSPECTION OF THE AREA AND VERIFIED NO CRACKS PRESENT. CAS FABRICATED A FILLER AND A DOUBLER FROM TITANIUM 0.025” REPAIR PARTS WERE TREATED, PRIMED AND INSTALLED IAW SRM 53-04, SHEET 4

ATA 5330

Part: SKIN — DAMAGED (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, MAINTENANCE FOUND THE SKIN IS GROUND OFF BETWEEN F.S. 1331-1338, BETWEEN L29L AND L29R. MAINTENANCE IN KYIP REMOVED AND CUT OUT DAMAGED SKIN BETWEEN F.S. 1331-1338, L29L- L29R, MAINTENANCE PERFORMED A HFEC INSPECTION OF THE AREA AND VERIFIED ALL DAMAGE WAS REMOVED. FABRICATED A INTERNAL DOUBLER FROM 2024 T3 0.025”, FILLERS FROM 2024 T3 0.063 AND AN EXTERNAL DOUBLER FROM 7075 T6 0.071”. THEY TREATED, PRIMED AND INSTALLED REPAIR PARTS IAW SRM 53-04 PARA. 8, FIGURE 9

ATA 5330

Part: SKIN — PILOT ERROR (ZONE 100) · airframe 75,857 hrs · 56,665 cycles

DURING A TAIL-STRIKE INSPECTION IN KYIP, C.A.S. MAINTENANCE FOUND A DRAG MARK ON THE FUSELAGE SKIN AT APPROXIMATELY F.S. 1322 L30, AND THE SKIN GOUGED BETWEEN F.S. 1334 TO 1338, L29L – L29R. MAINTENANCE IN KYIP PERFORMED A HFEC INSPECTION OF THE DAMAGE AREA AND VERIFIED NO CRACKS AND NOM THICKNESS OF 0.061” AND MIN THICKNESS OF 0.044” IN THE DAMAGED AREA. C.A.S MAINTENANCE FABRICATED A REPAIR DOUBLER FROM DMS 1592 0.025” MATERIAL, DOUBLER WAS TREATED, PRIMED AND INSTALLED IAW DC9/MD80 SRM 53-04-1 PARA. C PAGE 8 AND DRAWING # 5911429