# NTSB MIA01LA208: Morton S. Dismuke Spencer Amphib 1-12E, N112MD, Pensacola, FL, August 4, 2001 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: August 4, 2001, 15:30 local (20:30 UTC) - Place: Pensacola, FL - Coordinates: 30.369443, -87.436668 - Nearby events: https://openairdocs.org/map.md?lat=30.3694&lon=-87.4367&mi=10 - Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report November 6, 2001 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 52940 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA01LA208 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/52940/pdf - Page: https://openairdocs.org/ntsb/MIA01LA208 ## Probable cause The dragging of the right wing during water operations for undetermined reasons resulting in the airplane flipping inverted. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Dragged wing,rotor,pod,float or tail/skid, taxi - reason for occurrence undetermined (cause) - wing - out of balance - aircraft control - not possible, pilot in command - Roll over, taxi ## Analysis The pilot stated they landed on Perdido and to perform water maneuvers. During the first water maneuver the airplane developed a tendency to turn to the right as it gained speed. On the second maneuver, at 20 to 25 knots, the airplane again started turning to the right. He reduced engine power to investigate what was wrong, and when he did the right wing went further into the water and the airplane turned over inverted. The left wing went into the water and contacted the bottom of the bay. Their intentions, had the accident not occurred, was to take off after high speed taxiing and return to Coastal Airport. Postcrash examination of the airplane by an FAA inspector showed the right float was damaged during the accident and it could not be determined what was causing the airplane to turn right during water operations.. ## Factual narrative On August 4, 2001, about 1530 central daylight time, a Morton S. Dismuke Spencer Amphib 1-12E, N112MD, registered to an individual, crashed while performing high speed taxiing on Perdido Bay, near Pensacola, Florida, while on a 14 CFR Part 91 personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The airplane received substantial damage and the private-rated pilot and one passenger were not injured. The flight originated from Coastal Airport, Pensacola, Florida, the same day, about 1400. The pilot stated that after departing Coastal Airport, they flew to Ferguson Airport for fuel. After refueling, they departed Ferguson Airport and performed five water landings and takeoffs. They landed on Perdido and to perform water maneuvers. During the first water maneuver the airplane developed a tendency to turn to the right as it gained speed. On the second maneuver, at 20 to 25 knots, the airplane again started turning to the right. He reduced engine power to investigate what was wrong, and when he did the right wing went further into the water and the airplane turned over inverted. The left wing went into the water and contacted the bottom of the bay. Their intentions, had the accident not occurred, was to take off after high speed taxiing and return to Coastal Airport. Postcrash examination of the airplane by an FAA inspector showed the right float was damaged during the accident and it could not be determined what caused the airplane to turn right during water operations. ## Aircraft - Registration: [N112MD](https://openairdocs.org/deregistered/N112MD-2018-02-08), registration cancelled 2018-02-08, S/N 201, built 1985 (OpenAirDocs) - Reported make and model: Morton S. Dismuke Spencer Amphib 1-12E - Registry model: [Dismuke Morton S SPENCER AMPHIB 1-12E](https://openairdocs.org/model/dismuke-morton-s-spencer-amphib-1-12e) (registry code 9570430) (OpenAirDocs) - Registry engine: [Continental 6-285-A](https://openairdocs.org/engine/continental-6-285-a) (registry code 17038, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 201 - Airframe hours: 824 - Engines: Continental C-285-C2 300 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Antony E. Fiorentino - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, September 5, 2000, 31 hours before - Departed: 83J, Pensacola, FL ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 65; injuries: none; private; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; last flight review August 7, 1999; seat: left; flight hours: 5,500 total, 100 in this make and model, 5,400 as pilot in command, 44 in the last 90 days, 19 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 130° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 88 °F, dew point 73 °F - Altimeter: 29.87 inHg - Observed at: PNS, 8 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 (OpenAirDocs). - [Accident 20010804020329A](https://openairdocs.org/incident/20010804020329A), Aug 4, 2001: Amtr 112E, Pensacola, FL, Substantial damage. (.19) On August 4, 2001, about 1530 central standard time, a morton s. dismuke spencer amphib 1-12E, N112MD, registered to an individual, crashed while… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.