# NTSB MIA72IM109: Boeing 727, N4613, Jacksonville, FL, April 11, 1972

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: April 11, 1972
- Place: Jacksonville, FL · JACKSONVILLE, FL
- Location: 30.3322° N, 81.6557° W: Placed by OpenAirDocs: center of Jacksonville, FL, within about 15 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=30.3322&lon=-81.6557&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 31 uninjured
- Status: Completed, report March 19, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 165960
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA72IM109
- Page: https://openairdocs.org/ntsb/MIA72IM109

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0043  72/4/11    JACKSONVILLE,FLA    BOEING 727          CR-  0  0  6  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1000                    N4613               PX-  0  0 25                            46, 11305 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            2000 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - JACKSONVILLE INTL
        OPERATOR - NATIONAL AIRLINES,INC
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          JACKSONVILLE,FLA            NEW YORK,NY                  WASHINGTON,DC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           DRAGGED WINGTIP,POD,OR FLOAT                             TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - PREMATURE LIFT-OFF
        FACTOR(S)
           PERSONNEL - FLIGHT ENGINEER: INADEQUATE PREFLIGHT
           SYSTEMS - FLIGHT CONTROL SYSTEMS: WING LEADING EDGE FLAP SYSTEM
           SYSTEMS - ELECTRICAL SYSTEM: MOTORS
           MISCELLANEOUS ACTS,CONDITIONS - ELECTRICAL FAILURE
        REMARKS- WING LEADING EDGE SLATS NOT EXTENDED AND LOCKED.ELECT FAILURE OF L.E.D.BY-PASS VALVE ACT MOTOR.
```

## Aircraft

- Registration: N4613 (not matched to a registry record)
- Reported make and model: BOEING 727
- Category: Airplane
- Engines: turbo fan
- Damage: Minor damage
- Airport: Jacksonville 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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