# NTSB FTW75AF034: Boeing 727, N4611, Grand Isle, LA, November 17, 1974

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: November 17, 1974
- Place: Grand Isle, LA · GRAND ISLE, LA
- Location: 29.2129° N, 90.0291° W: Placed by OpenAirDocs: center of Grand Isle, LA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.2129&lon=-90.0291&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious, 9 minor, 63 uninjured
- Status: Completed, report January 21, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 141161
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW75AF034
- Page: https://openairdocs.org/ntsb/FTW75AF034

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0040  74/11/17 NR.GRAND ISLE,LA      BOEING 727          CR-  0  0  7  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0855                    N4611               PX-  0  2 65                            56, 15209 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            1834 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - NATIONAL AIRLINES,INC
        DEPARTURE POINT             INTENDED DESTINATION
          TAMPA,FLA                   HOUSTON,TEX
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PASSENGER
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT NOT FASTENED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEAT BELT SIGN ON
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                              UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                          RAIN SHOWERS, THUNDERSTORM
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     240
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           14                                                      IFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- ENCNTRD MDT TO HEAVY TURB DRG FLT IN VICINITY OF TSTM ACTIVITY. CREW GAVE AMPLE WARNING.
```

## Aircraft

- Registration: [N4611](https://openairdocs.org/deregistered/N4611-1992-12-31), registration cancelled 1992-12-31, S/N TF3 (OpenAirDocs)
- Reported make and model: BOEING 727
- Registry model: [Tomalesky Peter ACRO CAT](https://openairdocs.org/model/tomalesky-peter-acro-cat) (registry code 056128J) (OpenAirDocs)
- Category: Airplane
- Engines: turbo fan
- Damage: No damage

## Other investigations on N4611 (3)

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

- [NTSB MIA71AM040](https://openairdocs.org/ntsb/MIA71AM040), Nov 4, 1970: Boeing 727-35 (N4611), Savannah, GA, substantial damage
- [NTSB NYC67I0126](https://openairdocs.org/ntsb/NYC67I0126), Mar 8, 1967: Boeing B-727 (N4611), Jamaica, NY, incident, minor damage
- [NTSB MIA66I0092](https://openairdocs.org/ntsb/MIA66I0092), Feb 20, 1966: Boeing B-727 (N4611), Jacksonville, FL, incident, minor damage

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

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