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Atlas / NTSB / MIA91LA041

NTSB CAROL · Event

Event MIA91LA041

1990-12-09 ORLANDO, Florida, United States Airport · ORL None 1 aircraft Status: Completed

Registry · N5157T

FAA Aircraft Registry record.

Make / Model

POWRACHUTE PEGASUS

Year of manufacture

2003

Engine

ROTAX 582UL (65 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20070908

ADS-B equipped

Yes — Mode-S A67761

Registrant of record

MERRILL CHESTER R

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL DURING THE LANDING ROLL.

Factual narrative

WHILE IN CRUISE FLT, THE PILOT TURNED OFF THE LEFT HALF OF THE SPLIT-ROCKER TYPE MASTER SWITCH, WHICH CONTROLS THE ALTERNATOR. AS A RESULT, THE BATTERY WAS DRAINED. THE GEAR WAS EXTENDED USING THE EMERGENCY METHOD & AFTER TOUCHDOWN ON RWY 7 WITH A WIND FROM 030 DEGS AT 10 KTS, THE ACFT TRAVELLED OFF THE RT SIDE OF THE RWY INTO A DITCH. THE PLT REPORTED THAT THE BRAKES WERE INOPERATIVE & THE EMERGENCY GEAR EXTENSION SYSTEM WAS DIFFICULT TO OPERATE. ACCORDING TO THE DIRECTOR OF MAINT, THE RT MAIN GEAR TIRE HAD A FLAT SPOT. THE ACFT IS FLYING AGAIN & THE BRAKE SYSTEM, WHICH HAD NO MAINT PERFORMED AFTER THE ACCIDENT, CONTINUES TO OPERATE WITH NO FAILURE OR MALFUNCTION. THE EMERGENCY GEAR EXTENSION SYST WAS CHECKED & FOUND TO OPERATE NORMALLY. THE ALTERNATOR WHICH ALSO HAD NO MAINT PERFORMED AFTER THE ACCIDENT CONTINUES TO OPERATE WITH NO FAILURE OR MALFUNCTION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_MIA91LA041.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.