| Answer | Crossword Clue |
|---|---|
| TWA | Old air letters |
| TWA | Air letters? |
| SAS | Air letters? |
| PSI | Air pump letters |
| PSI | Air-pump letters |
| PSI | Air-pressure letters |
| SRS | Air bag letters |
| EDT | Air-board letters |
| BTU | Air-conditioner letters |
| AERO | Prefix on air letters. |
| AVION | Word on air letters. |
| AVION | Word on Air Letters. |
| PARAVION | Phrase on air letters. |
| AERO | Term on air letters. |
| PSI | Letters on an air pump |
