Exhibit No. 11A - Group Chairman Factual Report - TWA Flight 800 ...

27●July 7, 1996- The number 3 engine failed to go into reverse. The reverse lever interlock failed torelease. The maintenance records indicate that the lockout bolts on the number 3 thrust reverserwere installed, and the flex drive cables from the drive motor were removed. The thrust reverserwas placarded as inoperative.●July 15, 1996- All of the fan blades on the number three engine were rough. The maintenancerecords indicate that all of the edges were sanded smooth. The number 22, 28, and 32 fan bladeshad nicks on the leading edge. The nicks were blended.At the time of the accident, the engine had accumulated a total time since overhaul of 80,336 hours,and 14,632 cycles since overhaul.Engine position number 4, serial number 662463, was removed from N93104 on December 21, 1995, dueto high oil consumption. The engine was repaired and installed on N93119, in the number 4 position, onMay 11, 1996.Maintenance write-ups and work performed on the engine since July 1, 1996, were●●July 14, 1996- The number 4 engine EGT exceeded 960 degrees C for five seconds. Thetemperature was located in area “B on the over-temperature chart. The over-temperature wascaused by an unexpected rapid spool-up of the engine for takeoff. The maintenance recordsindicate that the inlet and exhaust were checked and the 9th and 15th stages were borescoped andthen were checked “okay.”July 15, 1996- The EGT indicator was replaced after the EGT was exceeded out of Athens onFlight 881.At the time of the accident, the engine had accumulated a total time since overhaul of 77,061 hours,and 14,016 cycles since overhaul.CABIN ELECTRICAL AIRCRAFT LOGBOOK ENTRIESThe cabin electrical write-ups and sign-offs were reviewed from the aircraft logbook entries datedApril 1, 1996, through July 17, 1996. The write-ups consisted of several entries of malfunctioninglighting for the passenger seating overhead reading lights, lights in the lavatories, galleys and overheadceiling lights. Additional write-ups were noted to the passenger audio system.A one-time entry of burned out overhead reading lights was noted for 71 seats located throughout thezones, The work performed for each seat was a "relamp" (replacement of the light bulb) of theinoperative light, followed by an operational check.Multiple write-ups of two to four times for the passenger overhead reading lights were notedthroughout the zones. Two seats with multiple entries were located in the Upper Deck; eight entries werenoted in Zone B; six entries were noted in Zone C; seven entries were noted in Zone D; and two entrieswere noted in Zone E. In each case, the work performed was a "relamp" of the inoperative light followedby an operational check.Multiple write-ups of two to five times were noted for lavatories J, L, U1, R, K and M. In each case,the work performed was a “relamp” followed by an operation check. Lavatories S, E, and H only had onewrite-up.