FTW69D0185

NTSB accident investigation · Boeing M75 · Marvell, AR · September 6, 1968

Accident · No injuriesClosed
Date
September 6, 1968
Place
Marvell, AR · MARVELL, AR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N52297Boeing M75
Status
Completed · report December 13, 1968
Report
Brief approved by the director
Case key
107816

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

NTSB brief

NTSB’s brief of the accident, as it was printed: the coded facts, with the probable cause and factors.

----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3542   68/9/6    MARVELL,ARK         BOEING M75          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 1300
        TIME - 1730                    N52297              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: PROCEDURE TURNAROUND
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - BURNED
           MISCELLANEOUS ACTS,CONDITIONS - LOW COMPRESSION
           INSTRUMENTS/EQUIPMENT AND ACCESSORIES - MISCELLANEOUS EQUIPMENT: SPRAY,DUSTING EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 1100                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - COTTON                                    TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GLOVES - NOT USED
          GOGGLES - USED                                           CRASH HELMET - AVAILABLE USED
          COCKPIT CRASHPAD - NOT INSTALLED                         CRASH BAR - NOT INSTALLED
          TANK/HOPPER-LOCATION - FORWARD OF PILOT                  TERRAIN-TYPE -LEVEL,FLAT
          ELEVATION-AREA BEING TREATED-FEET -  200                 SWATH RUN-HOW FLOWN - CROSSWIND
          PROCEDURE TURNAROUND - ENTRY TO PROCEDURE TURN
        REMARKS- PWR LOST DUE TO BURNT NO 9 EXH VALVE.HOPPER DUMP CTL HANDLE BROKE WHEN PLT TRIED TO JETTISON LOAD.

Aircraft

Registration
N52297
Reported as
Boeing M75
Category
Airplane
Engine
reciprocating
Damage
Substantial damage

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.