MAX() and multi-column index on a partitioned table?

I'm trying to call MAX() on the first value of a multi-column index of a
partitioned table and the planner is choosing to do a sequential scan
instead of an index scan. Is there something I can do to fix this?

Here's a simplified version of our schema:
CREATE TABLE data ( tutci DOUBLE PRECISION, tutcf DOUBLE PRECISION, value
INTEGER );
CREATE TABLE data1 ( CHECK ( tutci >= 1000 AND tutci < 2000 ) ) INHERITS
(data);
CREATE TABLE data2 ( CHECK ( tutci >= 2000 AND tutci < 3000 ) ) INHERITS
(data);
With the following indexes:
CREATE INDEX data_tutc_index ON data(tutci, tutcf);
CREATE INDEX data1_tutc_index ON data1(tutci, tutcf);
CREATE INDEX data2_tutc_index ON data2(tutci, tutcf);

No data is stored in the parent table (only in the partitions) and the
explain is as follows after doing a CLUSTER on the index and a VACUUM
ANALYZE after populating with simple test data:
EXPLAIN SELECT MAX(tutci) FROM data;
QUERY PLAN
----------------------------------------------------------------------------
Aggregate (cost=408.53..408.54 rows=1 width=8)
-> Append (cost=0.00..354.42 rows=21642 width=8)
-> Seq Scan on data (cost=0.00..26.30 rows=1630 width=8)
-> Seq Scan on data1 data (cost=0.00..164.11 rows=10011 width=8)
-> Seq Scan on data2 data (cost=0.00..164.01 rows=10001 width=8)

Thanks,
Dave