# NTSB IAD71II011: Boeing 707, N799TW, Dulles Intl Apt, DC, October 16, 1970

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: October 16, 1970
- Place: Dulles Intl Apt, DC · DULLES INTL APT, DC
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 61 uninjured
- Status: Completed, report February 10, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158794
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD71II011
- Page: https://openairdocs.org/ntsb/IAD71II011

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0047  70/10/16   DULLES INTL APT     BOEING 707          CR-  0  0  8  SCHED DOM PASSG SRV       CERTIFICATE UNKNOWN, AGE
        TIME - 0815                    N799TW              PX-  0  0 53                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - DULLES INTL
        OPERATOR - TRANS WORLD AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
          DULLES INTL APT             SAN FRANCISCO,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           MISCELLANEOUS                                            TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: ELEVATOR AND ELEVATOR TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- DRG TKOF CTL CK ELEV CTL QUAD P/N 50-3119-1,R ARM BKN.STRESS FM OVRTORQUED BOLTS.SVC LTR 3003 CVRS
```

## Aircraft

- Registration: [N799TW](https://openairdocs.org/deregistered/N799TW-1983-04-11), registration cancelled 1983-04-11, S/N 18762 (OpenAirDocs)
- Reported make and model: BOEING 707
- Registry model: [Boeing 707-131B](https://openairdocs.org/model/boeing-707-131b) (registry code 138360P) (OpenAirDocs)
- Category: Airplane
- Engines: turbo jet
- Damage: Minor damage
- Airport: Dulles Intl

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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