A-97-044
NTSB Safety Recommendation — Aviation
Recommendation text
THE NTSB RECOMMENDS THE FOLLOWING TO THE FAA: (4) SECTION 23.221 SPIN TESTS, TO ENSURE THAT IT IS IMPOSSIBLE TO OBTAIN UNRECOVERABLE SPINS WITH ANY USE OF THE FLIGHT CONTROLS OR THROTTLE AND TO VERIFY THAT THE RESULTS OBTAINED IN THE ORIGINAL CERTIFICATION PROGRAM (SPIN RECOVERY IS ALWAYS POSSIBLE IN ONE ADDITIONAL TURN AFTER INPUT OF ANTI-SPIN CONTROLS) CAN BE DUPLICATED ON PRODUCTION AIRPLANES.
In plain language (FlightFinder summary)
The NTSB asks the FAA to revise spin test requirements under Section 23.221 to guarantee that no combination of flight controls or throttle can produce an unrecoverable spin, and to confirm that production airplanes can match the original certification standard of recovering from a spin within one additional turn after applying anti-spin controls.
This plain-language summary is written by FlightFinder to explain the recommendation above. It is not the official wording — the verbatim NTSB text is quoted above.
Details
| Status | Closed - Unacceptable Action |
|---|---|
| Mode | Aviation |
| Closed | Nov 19, 1998 |
| NTSB number | CHI94FA097 |
| Addressees | FAA |
External links
NTSB safety recommendations are advisory; addressees are not legally required to adopt them. Source: NTSB CAROL (public domain).