If she was not commissioned eg WAAF G, Section Officer etc then the records will be in a batch being transferred from MoD to TNA 2025/2026. They will start appearing in Discovery closer to 2026.
For the moment make an online application to RAF Disclosures at Cranwell via .GOV.UK - they will tell you where the records are, possibly give a ref number that TNA can use to find on the pallets or even give a copy of the microfilm version that MoD has at the moment.
Ross