# NTSB ATL99LA097: Cessna 172RG, N9561B, Sanford, FL, May 28, 1999

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 28, 1999, 10:15 local (14:15 UTC)
- Place: Sanford, FL
- Coordinates: 28.780298, -81.270858 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=28.7803&lon=-81.2709&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 25, 2001
- Report: Approved by Office Director
- NTSB case key (mKey): 46398
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL99LA097
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/46398/pdf
- Page: https://openairdocs.org/ntsb/ATL99LA097

## Probable cause

The pilot's failure to maintain directional control during landing.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - airport sign/marker

## Analysis

The accident occurred during landing.  After touchdown, the airplane began to shake and tried to turn to the right. The pilot stated that he tried to maintain directional control without success.  The airplane departed the right side of the runway and struck two runway signs.  No mechanical problems with the airplane were reported by the pilot.

## Factual narrative

On May 28, 1999, at 1015, eastern daylight time, a Cessna 172RG, N9561B, veered off the right side of runway 9C and collided with two runway signs at the Orlando Sanford International Airport in Orlando, Florida. The instructional flight was operated by Comair Aviation Academy under the provisions of Title 14 CFR Part 91 with no flight plan filed. Visual weather conditions prevailed at the time of the accident. The airplane sustained substantial damage, and the commercial pilot was not injured. The flight initially departed Orlando, Florida, at 0730.

According to the Director of Training, the pilot was enrolled in an approved flight training program for foreign students, and was conducting solo training as part of that program. The pilot reported that he had received a landing clearance and the landing gear was down and locked.  According to the pilot, after touchdown, the airplane began to "shake and tried to turn to the right."  The pilot stated that he tried to maintain directional control, but the airplane veered off the right side of the runway into the grass and the collided with two runway signs.

The examination of the accident site disclosed that the airplane departed the right side of the runway after landing and struck two runway signs. No mechanical problems with the airplane were reported by the pilot.

## Aircraft

- Registration: [N9561B](https://openairdocs.org/deregistered/N9561B-2004-08-28), registration cancelled 2004-08-28, S/N 172RG0881, built 1981 (OpenAirDocs)
- Reported make and model: Cessna 172RG
- Registry model: [Cessna 172RG](https://openairdocs.org/model/cessna-172rg) (registry code 2072438) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 172RG0881
- Airframe hours: 9209
- Engines: Lycoming O-360-F1A6 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Comair Aviation Academy
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 1, 1999, 6 hours before
- Departed: SFB
- Airport: SFB, Orlando Sanford, runway 9C, 3,578 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 21; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 245 total, 47 in this make and model, 175 as pilot in command, 95 in the last 90 days, 25 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 66 °F
- Altimeter: 30.00 inHg
- Observed at: SFB, 1 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 19990528017949A](https://openairdocs.org/incident/19990528017949A), May 28, 1999: Cessna 172RG, Orlando, FL, Substantial damage. (.4)On may 28, 1999, at 1015 eastern daylight time, a Cessna 172RG, N9561B, veered off the right side of runway 9C and collided with two runway signs at the…

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.

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