FTW88DRD16

NTSB accident investigation · PZL-Mielec M18 · Bastrop, LA · July 24, 1988

Accident · No injuriesFinal report
Date
July 24, 1988, 09:30 local (14:30 UTC)
Place
Bastrop, LA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N46831PZL-Mielec M18
Weather
Visual (VMC) · Day
Status
Completed · report July 26, 1989
Report
Approved by Office Director
FAA report
19880724027909A
Case key
22500

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

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionManeuvering
Hydraulic system,seal - failure,partialCause
Hydraulic system,reservoir - pressure too lowCause
Loss of control - on ground/waterLanding - roll
Landing gear,normal brake system - inoperativeCause
Landing gear,emergency brake system - inoperativeCause
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - dirt bank/rising embankmentFactor

Analysis

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.

Aircraft

Registration
N46831
Reported as
PZL-Mielec M18
Category
Airplane
Serial number
1Z01227
Airframe hours
1,997
Engine
PZL-Kalisz KALI52, 967 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Arkla Flyers, Inc.
Registered owner
Portland Ag. Air, Inc.
Airworthiness certificate
Special, Restricted (Special)
Last inspection
Annual · April 4, 1988 · 463 hours before
Departed
NONE · Mer Rouge, LA
Airport
NONE · Ag Strip

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
53
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Center
Flight hours
10,000 total · 200 in this make and model · 200 in the last 90 days · 75 in the last 30 days · 8 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 64 °F
Altimeter
30.00 inHg
Observed at
MLU, 20 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.