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NTSB Report
July 24, 1988 · Pzl-Mielec M18 · N46831
Bastrop, LA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 24, 1988
Injury Outcomes
No injuries (1 uninjured)
Location
Bastrop, LA
Aircraft
Pzl-Mielec M18
Tail Number
N46831
Operator
Arkla Flyers
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW88DRD16
THIS AG AIRPLANE HAS A HYDRAULIC SYSTEM THAT OPERATES THE BRAKES AND FLAPS. THE ENGINE DRIVEN HYDRAULIC PUMP PROVIDES PRESSURE TO THE PRIMARY SYSTEM FOR NORMAL USE AND ALSO PROVIDES PRESSURE TO AN ACCUMULATOR FOR EMERGENCY USE. THE PRESSURE IN THE ACCUMULATOR CAN PROVIDE PRESSURE FOR SEVERAL FLAP MOVEMENTS PLUS SUFFICIENT EXTRA FOR BRAKE USE. THE PRIMARY SYSTEM AND ACCUMULATOR SYSTEM BOTH HAVE PRESSURE GAUGES. THE PILOT SAW THE PRESSURE DROP ON THE GAUGE AND FLEW TO A SATISFACTORY STRIP AND LANDED. AFTER TOUCHDOWN, THE PILOT SHUTDOWN THE ENGINE. ACFT TRACKED TO RIGHT, CROSSED A LEVEE AND WENT INTO A DRAINAGE DITCH. EXAM OF HYDRAULIC SYSTEM REVEALED A LEAKING SEAL.
Full Narrative
THIS AG AIRPLANE HAS A HYDRAULIC SYSTEM THAT OPERATES THE BRAKES AND FLAPS. THE ENGINE DRIVEN HYDRAULIC PUMP PROVIDES PRESSURE TO THE PRIMARY SYSTEM FOR NORMAL USE AND ALSO PROVIDES PRESSURE TO AN ACCUMULATOR FOR EMERGENCY USE. THE PRESSURE IN THE ACCUMULATOR CAN PROVIDE PRESSURE FOR SEVERAL FLAP MOVEMENTS PLUS SUFFICIENT EXTRA FOR BRAKE USE. THE PRIMARY SYSTEM AND ACCUMULATOR SYSTEM BOTH HAVE PRESSURE GAUGES. THE PILOT SAW THE PRESSURE DROP ON THE GAUGE AND FLEW TO A SATISFACTORY STRIP AND LANDED. AFTER TOUCHDOWN, THE PILOT SHUTDOWN THE ENGINE. ACFT TRACKED TO RIGHT, CROSSED A LEVEE AND WENT INTO A DRAINAGE DITCH. EXAM OF HYDRAULIC SYSTEM REVEALED A LEAKING SEAL.
Flight
Event TypeAccident
Event Time09:30 CDT
Nearest AirportAGSTRIP (0nm N)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPzl-Mielec M18
Tail NumberN46831
Aircraft CategoryAir
DamageSubstantial
OperatorArkla Flyers
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsPzl-Kalisz · KALI52 · Reciprocating · 967
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 5 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point64 F
Altimeter30.00 inHg
Observation Time16:50
Weather SourceWFAC