# Accident 19990318002409A: Socata TAMPICO TB 9C, Cahokia, IL, March 18, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: March 18, 1999, 15:18 local time
- Place: Cahokia, IL
- Airport: St Louis Downtown-Parks Airport
- Damage: Substantial damage
- Operating rules: Pilot school (Part 141)
- Location: 38.5702° N, 90.1699° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=38.5702&lon=-90.1699&mi=10
- Aircraft: N508PC, a cancelled registration (https://openairdocs.org/deregistered/N508PC-2001-04-16) (OpenAirDocs)
- Registry model: Socata TAMPICO TB 9C (registry code 8680693, https://openairdocs.org/model/socata-tampico-tb-9c) (OpenAirDocs)
- Fatal injuries: 0
- NTSB investigation: [NTSB CHI99LA110](https://openairdocs.org/ntsb/CHI99LA110) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990318002409A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

STUDENT PILOT WAS PRACTICING TOUCH AND GO LANDINGS WHEN THE ACFT TOOK OFF, BANKED HARD TO THE RIGHT, AND CRASHED IN THE GRASS TO THE RIGHT OF RWY 30R, OTHER CIRCUMSTANCES ARE UNKNOWN. (-23) DURING AUTHORIZED FAR 141 INSTRUCTOR PRESENT TRAINING FLIGHT, STUDENT PILOT WAS DEMONSTRATING "TOUCH & GO" LANDINGS. WHILE FOLLOWING WITHIN MINUTES OF A US ARMY CH 47 HELICOPTER FLYING AN APPROACH TO A PARALLEL LANDING SITE UPWIND FROM THE AIRPLANE, THE AIRPLANE ENCOUNTERED A RAPID UNCONTROLLABLE RIGHT ROLL WITHIN FIFTY FEET OF THE GROUND AFTER COMPLETION OF THE TOUCH & GO. THE AIRPLANE IMPACTED THE GROUND IN A STEEP RIGHT BANK ATTITUDE SEPARATING THE WINGS FROM THE AIRPLANE WITH THE FUSELAGE FINALLY COMING TO REST IN THE OPPOSITE LANDING DIRECTION. THE STUDENT PILOT WAS INTERVIEWED AND INDICATED THAT DURING SHORT FINAL TO RUNWAY PRIOR TO THE ACCIDENT, UNEXPLAINED SEVERE TURBULENCE OCCURRED. AFTER LANDING A SECOND TAKEOFF WAS STARTED AND AFTER GETTING AIRBORNE THE AIRPLANE WAS OUT OF CONTROL AND BANKED TO THE RIGHT. A RECOVERY COULD NOT BE MADE FROM THIS A                          TTITUDE. THE INSTRUCTOR PILOT WAS INTERVIEWED 4 WEEKS AFTER THE ACCIDENT                                            AND HE CANNOT REMEMBER ANYTHING AFTER THE INITIAL TAXI FROM THE HANGER.

## The NTSB's investigation of this event (1)

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.

- [NTSB CHI99LA110](https://openairdocs.org/ntsb/CHI99LA110), Mar 18, 1999: Socata TB-9C (N508PC), Cahokia, IL, substantial damage. Probable cause: the in-flight loss of control by the student pilot due to wind turbulence. Additional causes were the flight instructor's inadequate supervision of the flight and the flight instructor's decision to…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
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.