question: what were used on 1100 flights ?
answer: planes with landing-gear doors that had not been repaired as prescribed by the FAA .
turker_answer: Planes with landing-gear doors that had not been repaired as prescribed by the FAA were used on 1100 flights .
rule-based: Planes with landing-gear doors that had not been repaired as prescribed by the FAA were used on 1100 flights .