# SDR CKSA98157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N870BX
- Make and model: Doug DC-8-63F
- Registry model: [Doug DC-8-63F](https://openairdocs.org/model/mcdonnell-douglas-dc-8-63f) (OpenAirDocs)
- Aircraft serial: 46036
- System (JASC): [5311 · Fuselage Main, Frame](https://openairdocs.org/jasc/5311)
- Part: Frame
- Condition: Misdrilled
- Location: Bs 1420
- Stage of operation: IN
- How discovered: V
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CKSA98157

## Discrepancy

DURING ROUTINE CPCP INSPECTION, FOUND SEVERAL HOLES DRILLED INTO LT FRAME AT FS 1420, 5 ABOVE UPPER CUSP AREA AND LT FRAME RADIUS AT 31 AND 40 ABOVE UPPER CUSP AREA.  FABRICATED 2 REPAIR FROM 7075.0 HEAT TREATED TO 7075-T6 .071 DRILL TO FIT FRAME 2  SHIM.  INSTALLED DOUBLER IAW COTNEY D93-R35 - EXISTING HOLE WAS PLUGGED WITH MS20470E6-5 AT STA 1420 31 41 FROM FLOOR IAW COTNEY D93-R35 AND DC8 SRM 51-1-21 AND 51-1-8.  CORROSION TASK CARD NUMBER 573L-0551.  NON-ROUTINE NR 04955 TASK NR Y1413.

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