Drop-down for LOA's

We already ask a question about whether an aircraft is qualified for RVSM, but probably need to add the other ones in there as well. We could probably do a multi-select drop-down so that Operators could add all that were applicable.

A056: Data Link Communications

• B036: Oceanic and Remote Continental Navigation Using Multiple Long-Range Navigation Systems (M-LRNS)

• B039: Operations in North Atlantic High-Level Airspace (NAT HLA)

• B046: Operations in Reduced Vertical Separation Minimum (RVSM) Airspace

• B054: Oceanic and Remote Airspace Navigation Using a Single Long-Range Navigation System

• C048: Enhanced Flight Vision System (EFVS) Operations

• C052: Straight-In Non-Precision, Approach Procedure with Vertical Guidance (APV), and Category I Precision Approach and Landing Minima - All Airports

• C063: Area Navigation (RNAV) and Required Navigation Performance (RNP) Terminal Operations

• C073: Vertical Navigation (VNAV) Instrument Approach Procedures (IAP) Using Minimum Descent Altitude (MDA) as a Decision Altitude (DA)/Decision Height (DH)

• D095: MMEL used as an MEL